@article{DAN_1994_337_3_a7,
     author = {A. S. Kalashnikov},
     title = {Perturbation of critical exponents in some nonlinear problems of},
     journal = {Doklady Akademii Nauk},
     pages = {320--322},
     year = {1994},
     volume = {337},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_337_3_a7/}
}