@article{DE_1997_33_8_a17,
     author = {A. V. Abramyan and V. A. Nogin},
     title = {Complex powers of second-order hypoelliptic operators with constant coefficients in $L_p$-spaces},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1134--1135},
     publisher = {mathdoc},
     volume = {33},
     number = {8},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_8_a17/}
}