@article{GDZPPN002237776, title = {Nielsen's theorem for model asherical manifolds.}, journal = {Manuscripta mathematica}, volume = {91}, year = {1996}, pages = {63-84}, zbl = {0859.57038}, url = {http://dml.mathdoc.fr/item/GDZPPN002237776} }
Malfait, Wim. Nielsen's theorem for model asherical manifolds.. Manuscripta mathematica, Tome 91 (1996) pp. 63-84. http://gdmltest.u-ga.fr/item/GDZPPN002237776/