@article{SM_1969_9_4_a6,
     author = {A. L. Onishchik},
     title = {Decompositions of reductive {Lie} groups},
     journal = {Sbornik. Mathematics},
     pages = {515--554},
     year = {1969},
     volume = {9},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1969_9_4_a6/}
}