@article{AL_1981_20_1_a2,
     author = {R. Gonchigdorzh},
     title = {Orders of direct products of division rings},
     journal = {Algebra i logika},
     pages = {22--36},
     year = {1981},
     volume = {20},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1981_20_1_a2/}
}