TY  - JOUR
AU  - H. Busemann
TI  - Extremals on closed hyperbolic space forms
JO  - Matematika
PY  - 1966
SP  - 140
EP  - 145
VL  - 10
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1966_10_4_a5/
LA  - ru
ID  - MAT_1966_10_4_a5
ER  -