@article{DAN_1990_310_2_a3,
     author = {V. V. Vlasov},
     title = {Multiple minimality of a part of a system of root vectors of some},
     journal = {Doklady Akademii Nauk},
     pages = {276--280},
     publisher = {mathdoc},
     volume = {310},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_310_2_a3/}
}