@article{GDZPPN002038552,
title = {On the quasiarithmetic mean in a mean value property and the associated functional equation.},
journal = {Aequationes mathematicae},
volume = {41},
year = {1991},
pages = {33-54},
zbl = {0726.39003},
url = {http://dml.mathdoc.fr/item/GDZPPN002038552}
}
Kuczma, Marek. On the quasiarithmetic mean in a mean value property and the associated functional equation.. Aequationes mathematicae, Tome 41 (1991) pp. 33-54. http://gdmltest.u-ga.fr/item/GDZPPN002038552/