@article{IVM_1999_6_a9,
     author = {V. P. Sizhuk},
     title = {Neighborhoods of functions that are convex with respect to symmetric points},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--73},
     publisher = {mathdoc},
     number = {6},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1999_6_a9/}
}