TY  - JOUR
AU  - A. P. Ponomarev
AU  - N. Kh. Rozov
TI  - Differentiability of the support function of Pontryagin's alternating integral
JO  - Matematičeskie zametki
PY  - 1981
SP  - 865
EP  - 870
VL  - 30
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1981_30_6_a8/
LA  - ru
ID  - MZM_1981_30_6_a8
ER  -