TY - JOUR AU - Roman Soukal AU - Přemysl Holub TI - A note on packing chromatic number of the square lattice JO - The electronic journal of combinatorics PY - 2010 VL - 17 UR - http://geodesic.mathdoc.fr/articles/10.37236/466/ DO - 10.37236/466 ID - 10_37236_466 ER -