TY  - JOUR
AU  - F. Okabe
AU  - K. Nakamaru
AU  - Y. Ohno 
TI  - Expression of Lines Drawn by Chalks Based on Scanned Images
JO  - Journal for geometry and graphics
PY  - 2007
SP  - 105
EP  - 11
VL  - 11
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a9/
ID  - JGG_2007_11_1_JGG_2007_11_1_a9
ER  -