@article{10_4153_CJM_1976_023_7,
     author = {Chao, Chong-Yun and Stitzinger, Ernest L.},
     title = {Subinvariance in {Solvable} {Lie} {Algebras}},
     journal = {Canadian journal of mathematics},
     pages = {181--185},
     year = {1976},
     volume = {28},
     number = {1},
     doi = {10.4153/CJM-1976-023-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-023-7/}
}