@article{GDZPPN002549867, title = {On a Schr\"oder equation arising in branching processes.}, journal = {Aequationes mathematicae}, volume = {20}, year = {1980}, pages = {33-37}, zbl = {0433.39008}, url = {http://dml.mathdoc.fr/item/GDZPPN002549867} }
Hoppe, Fred M. On a Schröder equation arising in branching processes.. Aequationes mathematicae, Tome 20 (1980) pp. 33-37. http://gdmltest.u-ga.fr/item/GDZPPN002549867/