@incollection{400782,
title = {Pexider's functional equation},
booktitle = {Jan Vil\'em Pexider (1874--1914)},
series = {GDML\_Books},
publisher = {Matfyzpress},
address = {Praha},
year = {2009},
pages = {51-56},
url = {http://dml.mathdoc.fr/item/400782}
}
Netuka, Ivan. Pexider’s functional equation, dans Jan Vilém Pexider (1874–1914), GDML_Books, (2009), pp. 51-56. http://gdmltest.u-ga.fr/item/400782/