@article{GDZPPN002088819, title = {Diffeotopically Trivial Periodic Diffeomorphisms.}, journal = {Inventiones mathematicae}, volume = {11}, year = {1970}, pages = {340-348}, zbl = {0214.22902}, url = {http://dml.mathdoc.fr/item/GDZPPN002088819} }
Giffen, Ch.H. Diffeotopically Trivial Periodic Diffeomorphisms.. Inventiones mathematicae, Tome 11 (1970) pp. 340-348. http://gdmltest.u-ga.fr/item/GDZPPN002088819/