@article{KUIPM_1990_a4,
     author = {I. V. Konnov},
     title = {On properties of supporting and quasi-supporting vectors},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {50--57},
     publisher = {mathdoc},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1990_a4/}
}