@article{DE_1971_7_2_a12,
     author = {L. I. Kamynin},
     title = {On the {Gevrey} theory for parabolic {potentials.~I,} {II}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {312--328},
     publisher = {mathdoc},
     volume = {7},
     number = {2},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_2_a12/}
}