@article{GDZPPN002102714,
title = {Combinatorial squashings, 3-manifolds, and the third homology of groups.},
journal = {Inventiones mathematicae},
volume = {83},
year = {1986},
pages = {121-140},
zbl = {0604.57001},
url = {http://dml.mathdoc.fr/item/GDZPPN002102714}
}
Sieradski, A.J. Combinatorial squashings, 3-manifolds, and the third homology of groups.. Inventiones mathematicae, Tome 83 (1986) pp. 121-140. http://gdmltest.u-ga.fr/item/GDZPPN002102714/