@article{ZNSL_2009_365_a14,
     author = {E. V. Ferens-Sorotskiy},
     title = {Weierstrass preparational theorem for noncommutative rings},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {254--261},
     year = {2009},
     volume = {365},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2009_365_a14/}
}