@article{GDZPPN002042061, title = {Permutable functions.}, journal = {Aequationes mathematicae}, volume = {52}, year = {1996}, pages = {201-214}, zbl = {0894.33006}, url = {http://dml.mathdoc.fr/item/GDZPPN002042061} }
Coonce, H.B. Permutable functions.. Aequationes mathematicae, Tome 52 (1996) pp. 201-214. http://gdmltest.u-ga.fr/item/GDZPPN002042061/