@article{10_2140_gt_2006_10_331,
     author = {Boston, Nigel and Ellenberg, Jordan S},
     title = {Pro{\textendash}p groups and towers of rational homology spheres},
     journal = {Geometry & topology},
     pages = {331--334},
     year = {2006},
     volume = {10},
     number = {1},
     doi = {10.2140/gt.2006.10.331},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2006.10.331/}
}