TY  - JOUR
AU  - I. N. Sergeev
TI  - On the attainability of minimal exponents in the class of infinitesimal perturbations
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 2000
SP  - 61
EP  - 63
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_2000_3_a14/
LA  - ru
ID  - VMUMM_2000_3_a14
ER  -