@article{FPM_2007_13_5_a0,
     author = {I. N. Balaba and A. V. Mikhalev},
     title = {Isomorphisms of graded endomorphism rings of graded modules close to free ones},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {3--18},
     publisher = {mathdoc},
     volume = {13},
     number = {5},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2007_13_5_a0/}
}