%0 Journal Article %A Kolarz, Michał %T The code problem for directed figures %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 2010 %P 489-506 %V 44 %N 4 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ita/2011005/ %R 10.1051/ita/2011005 %G en %F ITA_2010__44_4_489_0