@article{AL_1984_23_5_a7,
     author = {A. I. Shkuratskii},
     title = {Subgroups of a symplectic group over the field of fractions of},
     journal = {Algebra i logika},
     pages = {578--596},
     publisher = {mathdoc},
     volume = {23},
     number = {5},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1984_23_5_a7/}
}