@article{DAN_1973_208_4_a1,
     author = {M. I. Vishik},
     title = {Fundamental solutions of infinite-dimensional elliptic operators of arbitrary order with constant coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {764--767},
     publisher = {mathdoc},
     volume = {208},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_4_a1/}
}