Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1976_230_2_a2, author = {V. P. Zolotarev}, title = {On $\pi$-sets}, journal = {Doklady Akademii Nauk}, pages = {264--266}, publisher = {mathdoc}, volume = {230}, number = {2}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1976_230_2_a2/} }
V. P. Zolotarev. On $\pi$-sets. Doklady Akademii Nauk, Tome 230 (1976) no. 2, pp. 264-266. http://geodesic.mathdoc.fr/item/DAN_1976_230_2_a2/