@article{IVM_2011_7_a4,
     author = {M. V. Plekhanova and A. F. Islamova},
     title = {Solvability of mixed-type optimal control problems for distributed systems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {37--47},
     publisher = {mathdoc},
     number = {7},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2011_7_a4/}
}