Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1970__20_2_a8, author = {Baranskij, V. A. and Trahtman, A. N.}, title = {{\CYRO} {\cyrp}{\cyro}{\cyrd}{\cyrp}{\cyro}{\cyrl}{\cyru}{\cyrg}{\cyrr}{\cyru}{\cyrp}{\cyrp}{\cyro}{\cyrv}{\cyrery}{\cyrh} {\cyrg}{\cyrr}{\cyra}{\cyrf}{\cyra}{\cyrh}}, journal = {Mathematica slovaca}, pages = {135--140}, publisher = {mathdoc}, volume = {20}, number = {2}, year = {1970}, mrnumber = {0314682}, zbl = {0196.04104}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MASLO_1970__20_2_a8/} }
Baranskij, V. A.; Trahtman, A. N. О подполугрупповых графах. Mathematica slovaca, Tome 20 (1970) no. 2, pp. 135-140. http://geodesic.mathdoc.fr/item/MASLO_1970__20_2_a8/