@article{GDZPPN002550431,
title = {A generalization of Bellman's functional equation.},
journal = {Aequationes mathematicae},
volume = {20},
year = {1980},
pages = {236-245},
zbl = {0467.39003},
url = {http://dml.mathdoc.fr/item/GDZPPN002550431}
}
Kardos, Peter. A generalization of Bellman's functional equation.. Aequationes mathematicae, Tome 20 (1980) pp. 236-245. http://gdmltest.u-ga.fr/item/GDZPPN002550431/