%0 Journal Article
%A F. Okabe
%A K. Nakamaru
%A Y. Ohno 
%T Expression of Lines Drawn by Chalks Based on Scanned Images
%J Journal for geometry and graphics
%D 2007
%P 105-11
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2007_11_1_JGG_2007_11_1_a9/
%F JGG_2007_11_1_JGG_2007_11_1_a9