@incollection{AST_1999__258__241_0,
     author = {Berkovich, Yakov},
     title = {Non-solvable groups with a large fraction of involutions},
     booktitle = {Structure theory of set addition},
     editor = {Deshouilliers Jean-Marc and Landreau Bernard and Yudin Alexander A.},
     series = {Ast\'erisque},
     pages = {241--248},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {258},
     year = {1999},
     mrnumber = {1701201},
     zbl = {0945.20009},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1999__258__241_0/}
}