@article{SM_1991_68_1_a12,
     author = {Pham Huu Tiep},
     title = {Irreducible orthogonal decompositions in {Lie~algebras}},
     journal = {Sbornik. Mathematics},
     pages = {257--275},
     publisher = {mathdoc},
     volume = {68},
     number = {1},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1991_68_1_a12/}
}