@article{DAN_1975_221_3_a5,
     author = {M. A. Gol'dman and S. N. Krachkovskii},
     title = {Behavior of the space of zero elements with finite-dimensional salient on the {Riesz} kernel under perturbations of the operator},
     journal = {Doklady Akademii Nauk},
     pages = {532--534},
     publisher = {mathdoc},
     volume = {221},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_3_a5/}
}