@article{TIMM_2003_9_1_a9,
     author = {A. R. Danilin},
     title = {Approximation of a~singularly perturbed elliptic optimal control problem with geometric constraints on the control},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {71--78},
     year = {2003},
     volume = {9},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2003_9_1_a9/}
}