@article{GDZPPN002067056,
title = {Cohomological dimension and symmetric automorphisms of a free group.},
journal = {Commentarii mathematici Helvetici},
volume = {64},
year = {1989},
pages = {44-61},
zbl = {0669.20027},
url = {http://dml.mathdoc.fr/item/GDZPPN002067056}
}
Collins, Donald J. Cohomological dimension and symmetric automorphisms of a free group.. Commentarii mathematici Helvetici, Tome 64 (1989) pp. 44-61. http://gdmltest.u-ga.fr/item/GDZPPN002067056/