@article{102262, author = {Bohdan Zelinka}, title = {A remark on signed posets and signed graphs}, journal = {Czechoslovak Mathematical Journal}, volume = {38}, year = {1988}, pages = {673-676}, zbl = {0679.05067}, mrnumber = {962910}, language = {en}, url = {http://dml.mathdoc.fr/item/102262} }
Zelinka, Bohdan. A remark on signed posets and signed graphs. Czechoslovak Mathematical Journal, Tome 38 (1988) pp. 673-676. http://gdmltest.u-ga.fr/item/102262/
Signed posets, CMS. D.J.C. v. 3- 10 (1983). (1983) | MR 0845035