@article{IVM_1985_7_a1,
     author = {V. V. Ignatov},
     title = {Quasivarieties of convexors},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {12--14},
     publisher = {mathdoc},
     number = {7},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1985_7_a1/}
}