@article{TRSPY_1981_158_a8,
     author = {A. I. Kostrikin and I. A. Kostrikin and V. A. Ufnarovskii},
     title = {Orthogonal decompositions of simple {Lie} algebras (type $A_n$)},
     journal = {Informatics and Automation},
     pages = {105--120},
     publisher = {mathdoc},
     volume = {158},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1981_158_a8/}
}