@article{10_4153_CJM_1980_090_1, author = {Mekler, Alan H.}, title = {How to {Construct} {Almost} {Free} {Groups}}, journal = {Canadian journal of mathematics}, pages = {1206--1228}, year = {1980}, volume = {32}, number = {5}, doi = {10.4153/CJM-1980-090-1}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-090-1/} }