@article{SM_1975_25_2_a3,
     author = {V. G. Maz'ya and I. V. Gel'man},
     title = {Estimates for differential operators with constant coefficients in a~half-space},
     journal = {Sbornik. Mathematics},
     pages = {225--258},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1975},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1975_25_2_a3/}
}