@article{RM_2009_64_2_a3,
     author = {D. N. Ivanov},
     title = {Orthogonal decompositions of direct~sums and tensor products of algebras},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {393--395},
     year = {2009},
     volume = {64},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2009_64_2_a3/}
}