@article{TIMB_2016_24_1_a0,
     author = {A. I. Astrovskii},
     title = {Schwarz forms for linear discrete observation system},
     journal = {Trudy Instituta matematiki},
     pages = {3--8},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2016_24_1_a0/}
}