@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/