@article{AL_1983_22_5_a6,
     author = {V. M. Petechuk},
     title = {Isomorphisms of symplectic groups over commutative rings},
     journal = {Algebra i logika},
     pages = {551--562},
     publisher = {mathdoc},
     volume = {22},
     number = {5},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1983_22_5_a6/}
}