@article{01925943,
title = {Stem extensions and stem covers of Leibniz algebras.},
journal = {Georgian Mathematical Journal},
volume = {9},
year = {2002},
pages = {659-669},
zbl = {1051.17001},
language = {en},
url = {http://dml.mathdoc.fr/item/01925943}
}
Casas, J. M.; Ladra, M. Stem extensions and stem covers of Leibniz algebras.. Georgian Mathematical Journal, Tome 9 (2002) pp. 659-669. http://gdmltest.u-ga.fr/item/01925943/