@article{FPM_2009_15_8_a2,
     author = {P. A. Krylov and A. A. Tuganbaev},
     title = {Modules over formal matrix rings},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {145--211},
     publisher = {mathdoc},
     volume = {15},
     number = {8},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2009_15_8_a2/}
}