TY  - DATA
AU  - Vagn Lundsgaard Hansen
TI  - Differential Geometry
T2  - Lecture Notes in Mathematics
SN  - 9783540472490
PY  - 1987///
CY  - Heidelberg
PB  - Springer Berlin
KW  - Mathematics and Statistics
UR  - https://doi.org/10.1007/BFb0078607
ER  -