@article{IVM_1973_9_a0,
     author = {R. S. Balabanova},
     title = {Hexagonal three-webs on a~surface},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--8},
     publisher = {mathdoc},
     number = {9},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_9_a0/}
}