TY - JOUR AU - A. V. Ershov TI - Obstructions to Embeddings of Bundles of Matrix Algebras in a Trivial Bundle JO - Matematičeskie zametki PY - 2013 SP - 521 EP - 540 VL - 94 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2013_94_4_a3/ LA - ru ID - MZM_2013_94_4_a3 ER -