TY  - BOOK
AU  - Hagen, Hans
TI  - Curve and surface design
SN  - 898712815
U1  - 516.6 HAG 
PY  - 1992///
KW  - Mathematics
N1  - Faculty, students and Staff
UR  - https://www.libgen.is/book/index.php?md5=5D92B546DF7D9800547E62EABB648D35
ER  -