@article{IVM_1976_11_a12,
     author = {R. M. Geǐdel'man},
     title = {Surfaces that carry conjugate $k$-webs},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {101--104},
     year = {1976},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_11_a12/}
}