TY  - JOUR
AU  - Ya. Sh. Salimov
TI  - A sharp estimate for the sum of the squares of moduli of root
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 705
EP  - 708
VL  - 329
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_329_6_a3/
LA  - ru
ID  - DAN_1993_329_6_a3
ER  -