TY  - BOOK
AU  - Encarnacao J
AU  -  Schlechtendahl E G
TI  - Computer aided design:fundatmentals and system architectures
T2  - Symbolic computation.  Computer graphics
U1  - D65,8(B):(NA), M3 
PY  - 1983///
CY  - Berlin
PB  - Springer-Verlag         
ER  -