Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1983__53_166869, author = {Shinji Yamashita}, title = {Functions with {H...} hyperbolic derivative.}, journal = {Mathematica Scandinavica}, pages = {238--244}, publisher = {mathdoc}, volume = {53}, year = {1983}, zbl = {0543.30025}, url = {http://geodesic.mathdoc.fr/item/MS2_1983__53_166869/} }
Shinji Yamashita. Functions with H... hyperbolic derivative.. Mathematica Scandinavica, Tome 53 (1983), pp. 238-244. http://geodesic.mathdoc.fr/item/MS2_1983__53_166869/