TY  - JOUR
AU  - Sun Khe-shen
TI  - On the rigidity of an unclosed surface of non-negative curvature in the case of a non-orthogonal bushing linkage
JO  - Doklady Akademii Nauk
PY  - 1958
SP  - 229
EP  - 232
VL  - 121
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1958_121_2_a8/
LA  - ru
ID  - DAN_1958_121_2_a8
ER  -