@article{ZNSL_2012_409_a1,
     author = {M. I. Belishev and M. N. Demchenko},
     title = {Dynamical system with boundary control associated with symmetric semi-bounded operator},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {17--39},
     publisher = {mathdoc},
     volume = {409},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_409_a1/}
}