Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1983_34_1_a11, author = {V. B. Kalinin}, title = {A problem of {Berge}}, journal = {Matemati\v{c}eskie zametki}, pages = {131--133}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_1_a11/} }
V. B. Kalinin. A problem of Berge. Matematičeskie zametki, Tome 34 (1983) no. 1, pp. 131-133. http://geodesic.mathdoc.fr/item/MZM_1983_34_1_a11/