@article{DAN_1967_174_5_a2,
     author = {V. I. Burenkov},
     title = {Infinite differentiability and analyticity of solutions decreasing at infinity of equations with constant coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {1007--1010},
     publisher = {mathdoc},
     volume = {174},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_174_5_a2/}
}