Edge and vertex operations on upper embeddable graphs. (English)
Math. Slovaca 46, No.1, 9-19 (1996).
1
On locally quasiconnected graphs and their upper embeddability. (English)
Czech. Math. J. 35(110), 162-166 (1985).
2
Upper embeddable factorizations of graphs. (English)
Czech. Math. J. 34(109), 432-438 (1984).
3
Odd rooted orientations and upper-embeddable graphs. (English)
Ann. Discrete Math. 17, 177-181 (1983).
4
Upper-embeddable graphs and related topics. (English)
J. Comb. Theory, Ser. B 26, 226-232 (1979).
5