@article{bwmeta1.element.desklight-8a8cd230-5b5b-4547-9aaf-2776afdc8fbd,
author = {M. Kuczma},
title = {On a characterization of the cosine},
journal = {Annales Polonici Mathematici},
volume = {15},
year = {1964},
pages = {53-57},
zbl = {0132.11503},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-8a8cd230-5b5b-4547-9aaf-2776afdc8fbd}
}
M. Kuczma. On a characterization of the cosine. Annales Polonici Mathematici, Tome 15 (1964) pp. 53-57. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-8a8cd230-5b5b-4547-9aaf-2776afdc8fbd/