TY  - BOOK
AU  - Hlavaty,Vaclav, x
AU  - x
TI  - Differential iline geometry: x
SN  - x
U1  - 516.7/HLD 
PY  - 1953///
CY  - Groningen
PB  - P. Noordhoff
KW  - Geometrty
KW  - Geometry
N1  - x
ER  -