@article{DE_1989_25_4_a13,
     author = {L. I. Kamynin},
     title = {Smoothness of parabolic {Pagni} potentials. {II.} {Proof} of theorems on smoothness of direct values of {Pagni} potentials},
     journal = {Differencialʹnye uravneni\^a},
     pages = {659--674},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_4_a13/}
}