TY - JOUR AU - Denecke, Klaus AU - Lekkoksung, Somsak TI - Hyperidentities in many-sorted algebras JO - Discussiones Mathematicae. General Algebra and Applications PY - 2009 SP - 47 EP - 74 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DMGAA_2009_29_1_a3/ LA - en ID - DMGAA_2009_29_1_a3 ER -