@article{SM_1985_51_2_a10,
     author = {N. I. Dubrovin},
     title = {Noncommutative valuation rings in simple finite-dimensional algebras over a~field},
     journal = {Sbornik. Mathematics},
     pages = {493--505},
     publisher = {mathdoc},
     volume = {51},
     number = {2},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1985_51_2_a10/}
}