@article{ISU_2009_9_3_a4,
     author = {A. V. Ershov},
     title = {Obstructions to embedding of matrix algebra bundles into a~trivial one},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {27--33},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2009_9_3_a4/}
}