@article{SM_1971_14_2_a1,
     author = {A. S. Kalashnikov},
     title = {Some problems for linear partial differential equations with constant coefficients in the entire space and for a~class of degenerate equations in a~halfspace},
     journal = {Sbornik. Mathematics},
     pages = {186--198},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_14_2_a1/}
}