共 30 条
[1]
Graph theory with applications. Bondy J A and Murty U S R. . 1976
[2]
Higher-dimensional tree structures. Dewdney A K. Journal of Combinatorial Theory Series B . 1974
[3]
The smallest graph variety containing all paths. Nowakowski R and Rival I. Discrete Mathematics . 1983
[4]
Fixed point theorem in partially ordered sets. Baclawski K and Bjorner A. Advances in Mathematics . 1979
[5]
Fixed edge theorem for graphs with loops. Nowakowski R and Rival I. Journal of Graph Theory . 1979
[6]
On the Helly property working as a compactness criterion on graphs. Quilliot A. Journal of Combinatorial Theory Series A . 1985
[7]
Absolute planar retracts and four color conjecture. Hell P. Journal of Combinatorial Theory Series B . 1974
[8]
The problem of fixed points in ordered sets.Ann. Rival I. Discrete Mathematics . 1980
[9]
Combinatorics and topology. Bjoner A. Notices of American. Mathematical Society . 1985
[10]
A retraction problem in graph theory. Quilliot R. Discrete Mathematics . 1985