@article{IIGUM_2011_4_1_a3,
     author = {B. V. Loginov and I. V. Konopleva and Y. B. Rousak},
     title = {Implicit operator theorems under group symmetry conditions},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {31--43},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2011_4_1_a3/}
}