@article{VCHGU_2012_15_a5,
     author = {M. V. Plekhanova and E. S. Zorina},
     title = {Optimal control of semilinear {Sobolev} type systems in the problems excluding control costs},
     journal = {Vestnik Chelyabinskogo Gosudarstvennogo Universiteta. Matematika, Mekhanika, Informatika},
     pages = {80--89},
     year = {2012},
     number = {15},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VCHGU_2012_15_a5/}
}