TY  - JOUR
AU  - L. D. Pustyl'nikov
TI  - A~generalization of two theorems of C.\,L.~Siegel to the nonautonomous case
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1971
VL  - 26
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1971_26_4_a16/
LA  - ru
ID  - RM_1971_26_4_a16
ER  -