@article{MZM_2013_94_4_a3,
     author = {A. V. Ershov},
     title = {Obstructions to {Embeddings} of {Bundles} of {Matrix} {Algebras} in a {Trivial} {Bundle}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {521--540},
     publisher = {mathdoc},
     volume = {94},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2013_94_4_a3/}
}