@article{MZM_1974_16_2_a6,
     author = {G. A. Noskov},
     title = {Generating elements and defining relations for symplectic groups over certain rings},
     journal = {Matemati\v{c}eskie zametki},
     pages = {237--246},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1974_16_2_a6/}
}