@article{IVM_1985_12_a8,
     author = {S. A. Nefedov and F. A. Sholokhovich},
     title = {The semigroup approach to problems of boundary control},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {37--42},
     publisher = {mathdoc},
     number = {12},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1985_12_a8/}
}