@article{DAN_1989_307_4_a3,
     author = {N. A. Vavilov and E. B. Plotkin and A. V. Stepanov},
     title = {Calculations in {Chevalley} groups over commutative rings},
     journal = {Doklady Akademii Nauk},
     pages = {788--791},
     year = {1989},
     volume = {307},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_307_4_a3/}
}