Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1961_3_a13, author = {V. A. Tikhonov}, title = {The {Ribaucour} transformation in conformal geometry}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {136--147}, publisher = {mathdoc}, number = {3}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1961_3_a13/} }
V. A. Tikhonov. The Ribaucour transformation in conformal geometry. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1961), pp. 136-147. http://geodesic.mathdoc.fr/item/IVM_1961_3_a13/