TY - JOUR AU - Ivo M. Michailov TI - Embedding Obstructions for the Cyclic and Modular 2-Groups JO - Mathematica balkanica PY - 2007 SP - 31 VL - 21 IS - 1-2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2007_21_1-2_a3/ ID - MABA_2007_21_1-2_a3 ER -