Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1971_10_5_a5, author = {S. Todorinov}, title = {Directed groups}, journal = {Algebra i logika}, pages = {558--560}, publisher = {mathdoc}, volume = {10}, number = {5}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1971_10_5_a5/} }
S. Todorinov. Directed groups. Algebra i logika, Tome 10 (1971) no. 5, pp. 558-560. http://geodesic.mathdoc.fr/item/AL_1971_10_5_a5/