@article{FPM_2009_15_8_a1,
     author = {E. I. Kompantseva},
     title = {Torsion-free rings},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {95--143},
     year = {2009},
     volume = {15},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2009_15_8_a1/}
}