@article{KUIPM_1990_a5,
     author = {I. V. Konnov},
     title = {Convergence of relaxation methods for nondifferentiable constrained optimization},
     journal = {Issledovaniya po Prikladnoi Matematike i Informatike},
     pages = {57--71},
     publisher = {mathdoc},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUIPM_1990_a5/}
}