TY  - BOOK
AU  - Gottfried, Bj5rn.
TI  - Shape from Positional-Contrast: Characterising Sketches with Qualitative Line Arrangements [electronic resource]
SN  - 3835091634
U1  - 006.370222 
PY  - 2007///
CY  - Wiesbaden
PB  - Deutscher Universit ts-Verlag
N1  - http://dx.doi.org/10.1007/978-3-8350-9163-4
ER  -