@article{GDZPPN002067765,
title = {Baumslag-Solitar groups and some other groups of cohomological dimension two.},
journal = {Commentarii mathematici Helvetici},
volume = {65},
year = {1990},
pages = {547-558},
zbl = {0744.20044},
url = {http://dml.mathdoc.fr/item/GDZPPN002067765}
}
Kropholler, P.H. Baumslag-Solitar groups and some other groups of cohomological dimension two.. Commentarii mathematici Helvetici, Tome 65 (1990) pp. 547-558. http://gdmltest.u-ga.fr/item/GDZPPN002067765/