TY  - JOUR
AU  - Ya. B. Pesin
TI  - Equations for the entropy of a geodesic flow on a compact Riemannian manifold without conjugate points
JO  - Matematičeskie zametki
PY  - 1978
SP  - 553
EP  - 570
VL  - 24
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1978_24_4_a9/
LA  - ru
ID  - MZM_1978_24_4_a9
ER  -