@article{1103037139, author = {Lewis, Daniel C.}, title = {Reversible transformations.}, journal = {Pacific J. Math.}, volume = {11}, number = {4}, year = {1961}, pages = { 1077-1087}, language = {en}, url = {http://dml.mathdoc.fr/item/1103037139} }
Lewis, Daniel C. Reversible transformations.. Pacific J. Math., Tome 11 (1961) no. 4, pp. 1077-1087. http://gdmltest.u-ga.fr/item/1103037139/