@article{KUIPM_1979_a3,
     author = {M. I. Kreinin},
     title = {Convergence of subgradient methods of minimizing convex functions},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {24--32},
     publisher = {mathdoc},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1979_a3/}
}