Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1960_132_1_a4, author = {V. V. Goldberg}, title = {Conjugate nets with parabolic congruences of axes}, journal = {Doklady Akademii Nauk}, pages = {24--27}, publisher = {mathdoc}, volume = {132}, number = {1}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a4/} }
V. V. Goldberg. Conjugate nets with parabolic congruences of axes. Doklady Akademii Nauk, Tome 132 (1960) no. 1, pp. 24-27. http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a4/