TY - JOUR AU - Alexander L. Churchill TI - Restrictions and generalizations on comma-free codes JO - The electronic journal of combinatorics PY - 2009 VL - 16 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.37236/114/ DO - 10.37236/114 ID - 10_37236_114 ER -