@article{01770067,
title = {Crossed extensions of algebras and Hochschild cohomology.},
journal = {Homology, Homotopy and Applications},
volume = {4},
year = {2002},
pages = {63-82},
zbl = {1004.18012},
language = {en},
url = {http://dml.mathdoc.fr/item/01770067}
}
Baues, Hans-Joachim; Minian, Elias Gabriel. Crossed extensions of algebras and Hochschild cohomology.. Homology, Homotopy and Applications, Tome 4 (2002) pp. 63-82. http://gdmltest.u-ga.fr/item/01770067/