@article{MM2_1995__87_4_156093, author = {M. Andreatta}, title = {Some remarks on the study of good contractions.}, journal = {Manuscripta mathematica}, pages = {359--368}, year = {1995}, volume = {87}, number = {4}, zbl = {0860.14009}, url = {http://geodesic.mathdoc.fr/item/MM2_1995__87_4_156093/} }