@article{1183524867,
author = {Bellman, Richard and Karush, William},
title = {On the maximum transform and semigroups of transformations},
journal = {Bull. Amer. Math. Soc.},
volume = {68},
number = {6},
year = {1962},
pages = { 516-518},
language = {en},
url = {http://dml.mathdoc.fr/item/1183524867}
}
Bellman, Richard; Karush, William. On the maximum transform and semigroups of transformations. Bull. Amer. Math. Soc., Tome 68 (1962) no. 6, pp. 516-518. http://gdmltest.u-ga.fr/item/1183524867/