@article{DAN_1970_193_4_a19, author = {\`E. A. Kuz'min and V. V. Ilyukhin and N. V. Belov}, title = {Isolation of the basic system from the vector one according to two multiplicity peak {(Feodorov} group $P1$)}, journal = {Doklady Akademii Nauk}, pages = {812--813}, publisher = {mathdoc}, volume = {193}, number = {4}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_193_4_a19/} }