@article{IVM_1973_12_a9,
     author = {S. N. Slugin and A. L. Kalashnikov},
     title = {$K$-minimality of an optimal element and of a~minimizing sequence},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {73--77},
     publisher = {mathdoc},
     number = {12},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_12_a9/}
}