@article{Arditi-Werra/76, AUTHOR = {Arditi, J.C. and Werra, D. de}, TITLE = {A note on a paper by D. Seinsche}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {90}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bollobas/76, AUTHOR = {Bollob{\'a}s, B{\'e}la}, TITLE = {Complete subgraphs are elusive}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {1-7}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Ehrlich-Even-Tarjan/76, AUTHOR = {Ehrlich, G. and Even, S. and Tarjan, R.E.}, TITLE = {Intersection graphs of curves in the plane}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {8-20}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Simoes-Pereira/76, AUTHOR = {Sim{\~o}es-Pereira, J.M.S.}, TITLE = {Joins of $n$-degenerate graphs and uniquely $(m,n)$-partitionable graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {21-29}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Platt/76, AUTHOR = {Platt, C.R.}, TITLE = {Planar lattices and planar graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {30-39}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Podewski-Steffens/76, AUTHOR = {Podewski, Klaus-Peter and Steffens, Karsten}, TITLE = {Injective choice functions for countable families}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {40-46}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Watkins/76, AUTHOR = {Watkins, Mark E.}, TITLE = {Graphical regular representations of free products of groups}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {47-56}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{de_Werra/76a, AUTHOR = {de Werra, D.}, TITLE = {Some remarks on good colorations}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {57-64}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Fishburn/76b, AUTHOR = {Fishburn, Peter C.}, TITLE = {On linear extension majority graphs of partial orders}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {65-70}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Moon/76, AUTHOR = {Moon, J.W.}, TITLE = {A problem on arcs without bypasses in tournaments}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {71-75}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Overbeck-Larisch/76, AUTHOR = {Overbeck-Larisch, Maria}, TITLE = {Hamiltonian paths in oriented graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {76-80}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Richmond/76, AUTHOR = {Richmond, L.B.}, TITLE = {On Hamiltonian polygons}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {81-87}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Kleitman/76b, AUTHOR = {Kleitman, D.J.}, TITLE = {A note on the parity of the number of crossings of a graph}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {88-89}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Longyear/76, AUTHOR = {Longyear, Judith Q.}, TITLE = {Some isomorphisms between pairs of Latin squares}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {91-95}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Lovasz/76, AUTHOR = {Lov{\'a}sz, L{\'a}szl{\'o}}, TITLE = {On two minimax theorems in graph}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {96-103}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Caccetta/76, AUTHOR = {Caccetta, L.}, TITLE = {Extremal graphs of diameter 4}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {104-115}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Zaks/76, AUTHOR = {Zaks, Joseph}, TITLE = {Pairs of Hamiltonian circuits in 5-connected planar graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {116-131}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Woodall/76, AUTHOR = {Woodall, D.R.}, TITLE = {A note on a problem of Halin's}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {132-134}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Chen-Daykin/76, AUTHOR = {Chen, C.C. and Daykin, D.E.}, TITLE = {Graphs with Hamiltonian cycles havig adjacent lines different colors}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {135-139}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Guy-Ringel/76, AUTHOR = {Guy, Richard K. and Ringel, Gerhard}, TITLE = {Triangular embedding of $K_n-K_6$}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {140-145}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bermond-Faber/76, AUTHOR = {Bermond, J.C. and Faber, V.}, TITLE = {Decomposition of the complete directed graph into $k$-circuits}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {146-155}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Manvel/76, AUTHOR = {Manvel, Bennet}, TITLE = {On reconstructing graphs from their sets of subgraphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {156-165}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bollobas-Erdos/76, AUTHOR = {Bollob{\'a}s, B{\'e}la and Erd{\H{o}}s, Paul}, TITLE = {On a Ramsey-Tur{\'a}n type problem}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {166-168}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Auerbach-Laskar/76, AUTHOR = {Auerbach, Bruce and Laskar, Renu}, TITLE = {Some coloring numbers for complete $r$-partite graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {169-170}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Datta/76a, AUTHOR = {Datta, Biswa T.}, TITLE = {Nonexistence of six-dimensional tangential 2-blocks}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {171-193}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Behzad-Radjavi/76, AUTHOR = {Behzad, M. and Radjavi, H.}, TITLE = {Chromatic numbers of infinite graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {195-200}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bollobas-Eldridge/76, AUTHOR = {Bollob{\'a}s, B{\'e}la and Eldridge, Stephen}, TITLE = {On graphs with diameter 2}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {201-205}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Jaeger/76, AUTHOR = {Jaeger, F.}, TITLE = {On parity patterns of even $Q$-angulations}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {206-211}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Parthasarathy-Ravindra/76, AUTHOR = {Parthasarathy, K.R. and Ravindra, G.}, TITLE = {The strong perfect-graph conjecture is true for $K_{1,3}$-free graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {212-223}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Koren/76a, AUTHOR = {Koren, Michael}, TITLE = {Pairs of sequences with a unique realization by bipartite graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {224-234}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Koren/76b, AUTHOR = {Koren, Michael}, TITLE = {Sequences with a unique realization by simple graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {235-244}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Beineke-Hemminger/76, AUTHOR = {Beineke, Lowell W. and Hemminger, Robert L.}, TITLE = {Infinite digraphs isomorphic with their line digraphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {245-256}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Benard-Bouchet/76, AUTHOR = {B{\'e}nard, Dominique and Bouchet, Andr{\'e}}, TITLE = {Some cases of triangular imbeddings for $K_{n(m)}$}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {257-269}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Wille/76, AUTHOR = {Wille, Detlef}, TITLE = {Asymptotic formulas for the number of oriented graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {270-274}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Weiss/76, AUTHOR = {Weiss, Richard}, TITLE = {Glatt einbettbare Untergraphen}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {275-281}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Merriell/76, AUTHOR = {Merriell, David}, TITLE = {A note on uniquely reducible graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {21}, PAGES = {282-284}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Hobbs/76, AUTHOR = {Hobbs, Arthur M.}, TITLE = {The square of a block is vertex pancyclic}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {1-4}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Biggs-Meredith/76, AUTHOR = {Biggs, N.L. and Meredith, G.H.J.}, TITLE = {Approximations for chromatic polynomials}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {5-19}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Haggkvist-Thomassen/76, AUTHOR = {H{\"a}ggkvist, Roland and Thomassen, Carsten}, TITLE = {On pancyclic digraphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {20-40}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bondy-Ingleton/76, AUTHOR = {Bondy, J.A. and Ingleton, A.W.}, TITLE = {Pancyclic graphs II}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {41-46}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Faudree-Schelp/76a, AUTHOR = {Faudree, R.J. and Schelp, R.H.}, TITLE = {The square of a block is strongly path connected}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {47-61}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Mather/76, AUTHOR = {Mather, Michael}, TITLE = {The rugby footballers of Croam}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {62-63}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Johnson/76a, AUTHOR = {Johnson, David S.}, TITLE = {On property $B_r$}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {64-66}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Clapham-Kleitman/76, AUTHOR = {Clapham, C.R.J. and Kleitman, D.J.}, TITLE = {The degree sequences of self-complementary graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {67-74}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Clapham/76a, AUTHOR = {Clapham, C.R.J.}, TITLE = {Potentially self-complementary degree sequences}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {75-79}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Lewin/76, AUTHOR = {Lewin, Mordechai}, TITLE = {On hypergraphs without significant cycles}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {80-83}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Albertson/76, AUTHOR = {Albertson, Michael O.}, TITLE = {A lower bound for the independence number of a planar graph}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {84-93}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Gardiner/76, AUTHOR = {Gardiner, A.}, TITLE = {Homogeneous graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {94-102}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Giles/76a, AUTHOR = {Giles, William B.}, TITLE = {Point deletions of outerplanar blocks}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {103-116}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Kundu-Sampathkumar-Bhave/76, AUTHOR = {Kundu, Sukhamay and Sampathkumar, E. and Bhave, V.N.}, TITLE = {Reconstruction of a tree from its homomorphic images and other related transforms}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {117-123}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Weiss/76a, AUTHOR = {Weiss, Richard M.}, TITLE = {{\"u}ber lokal $s$-regul{\"a}re Graphen}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {124-127}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Chvatal-Hanson/76, AUTHOR = {Chv{\'a}tal, V. and Hanson, D.}, TITLE = {Degrees and matchings}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {128-138}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Chvatal/76, AUTHOR = {Chv{\'a}tal, V.}, TITLE = {On the strong perfect graph conjecture}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {139-141}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Beard-Dorris/76, AUTHOR = {Beard, Jacob T.B., Jr. and Dorris, Ann D.}, TITLE = {A polynomial dual of partitions}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {142-148}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Daykin/76, AUTHOR = {Daykin, D.E.}, TITLE = {Graphs with cycles having adjacent lines different colors}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {149-152}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Fishburn/76a, AUTHOR = {Fishburn, Peter C.}, TITLE = {Dictators on blocks: Generalizations of social choice impossibility theorems}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {153-170}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Christensen-Bryant/76, AUTHOR = {Christensen, J. and Bryant, P.R.}, TITLE = {On the number of cyclically distinct binary sequences having no internal periodicity and satisfying certain equality constraints}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {171-184}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Stahl/76, AUTHOR = {Stahl, Saul}, TITLE = {$n$-tuple colorings and associated graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {185-203}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Knopfmacher/76, AUTHOR = {Knopfmacher, J.}, TITLE = {Arithmetical properties of finite graphs and polynomials}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {205-215}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Bixby/76, AUTHOR = {Bixby, Robert E.}, TITLE = {A strengthened form of Tutte's characterization of regular matroids}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {216-221}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Alspach-Mason-Pullman/76, AUTHOR = {Alspach, Brian and Mason, David W. and Pullman, Norman J.}, TITLE = {Path numbers of tournaments}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {222-228}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Todd/76a, AUTHOR = {Todd, Michael J.}, TITLE = {A combinatorial generalization of polytopes}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {229-242}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Nesetril-Rodl/76, AUTHOR = {Ne{\v{s}}et{\v{r}}il, Jaroslav and R{\"o}dl, Vojt{\v{e}}ch}, TITLE = {The Ramsey property for graphs with forbidden complete subgraphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {243-249}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Erdos-Faudree-Rousseau-Schelp/76, AUTHOR = {Erd{\H{o}}s, P. and Faudree, R.J. and Rousseau, C.C. and Schelp, R.H.}, TITLE = {Generalized Ramsey theory for multiple colors}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {250-264}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Lindner-Mendelsohn-Rosa/76, AUTHOR = {Lindner, Charles C. and Mendelsohn, Eric and Rosa, Alexander}, TITLE = {On the number of 1-factorizations of the complete graph}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {265-282}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, } @article{Alpert-Gross/76, AUTHOR = {Alpert, Seth R. and Gross, Jonathan L.}, TITLE = {Components of branched coverings of current graphs}, JOURNAL = {J. Comb.~Theory Series B}, VOLUME = {20}, PAGES = {283-303}, YEAR = {1976}, PUBLISHER = {Academic Press}, ADDRESS = {New York-San Francisco-London-San Diego}, }