@article{GDZPPN002453223, title = {On Continuous Solutions of a Functional Inequality.}, journal = {Metrika}, volume = {20}, year = {1973}, pages = {65-69}, zbl = {0252.26005}, url = {http://dml.mathdoc.fr/item/GDZPPN002453223} }
Muszely, Gy. On Continuous Solutions of a Functional Inequality.. Metrika, Tome 20 (1973) pp. 65-69. http://gdmltest.u-ga.fr/item/GDZPPN002453223/