@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/}
}