@article{DAN_1979_245_1_a5,
     author = {V. P. Platonov and A. A. Bondarenko and A. S. Rapinchuk},
     title = {Class number of algebraic groups},
     journal = {Doklady Akademii Nauk},
     pages = {28--31},
     publisher = {mathdoc},
     volume = {245},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_1_a5/}
}