@article{DE_1989_25_11_a31,
     author = {O. V. Khramtsov},
     title = {Controllability of linear {Cauchy--Kovalevskaya} systems with constant coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2013--2014},
     publisher = {mathdoc},
     volume = {25},
     number = {11},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_11_a31/}
}