TY - JOUR AU - P. V. Danchev TI - Invariants for Commutative Group Algebras of Mixed and Torsion Groups JO - Mathematica balkanica PY - 1999 SP - 1 VL - 13 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_1999_13_1-2_a0/ ID - MABA_1999_13_1-2_a0 ER -