@article{00436741, title = {Antipodal graphs and digraphs.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {16}, year = {1993}, pages = {579-586}, doi = {10.1155/S0161171293000717}, zbl = {0783.05045}, language = {en}, url = {http://dml.mathdoc.fr/item/00436741} }
Johns, Garry; Sleno, Karen. Antipodal graphs and digraphs.. International Journal of Mathematics and Mathematical Sciences, Tome 16 (1993) pp. 579-586. doi : 10.1155/S0161171293000717. http://gdmltest.u-ga.fr/item/00436741/