@article{01479891,
title = {The low-dimensional homology of crossed modules.},
journal = {Homology, Homotopy and Applications},
volume = {2},
year = {2000},
pages = {41-50},
zbl = {0972.18004},
language = {en},
url = {http://dml.mathdoc.fr/item/01479891}
}
Gilbert, N.D. The low-dimensional homology of crossed modules.. Homology, Homotopy and Applications, Tome 2 (2000) pp. 41-50. http://gdmltest.u-ga.fr/item/01479891/