@article{MZ_1972__124_171674,
     author = {Ernest L. Stitzinger},
     title = {Covering-Avoidance for {Satured} {Formations} of {Solvable} {Lie} {Algebras.}},
     journal = {Mathematische Zeitschrift},
     pages = {237--249},
     publisher = {mathdoc},
     volume = {124},
     year = {1972},
     zbl = {0215.38601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__124_171674/}
}