@article{JRAM_1955__194_150282,
     author = {E.M. Wright},
     title = {A non-linear difference-differential equation.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {66--87},
     year = {1955},
     volume = {194},
     zbl = {0064.34203},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1955__194_150282/}
}