@article{IVM_1976_6_a7,
     author = {L. P. Mel'nikova and L. N. Kuznetsova},
     title = {A generalization of the notion of convex curve},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {66--69},
     publisher = {mathdoc},
     number = {6},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_6_a7/}
}