@article{GDZPPN002110938,
title = {On non-semisplit extensions, tensor products and exactness of group C*-algebras.},
journal = {Inventiones mathematicae},
volume = {114},
year = {1993},
pages = {449-490},
zbl = {0803.46071},
url = {http://dml.mathdoc.fr/item/GDZPPN002110938}
}
Kirchberg, Eberhard. On non-semisplit extensions, tensor products and exactness of group C*-algebras.. Inventiones mathematicae, Tome 114 (1993) pp. 449-490. http://gdmltest.u-ga.fr/item/GDZPPN002110938/