@article{03745556, title = {Yet another characterization of the sine function.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {4}, year = {1981}, pages = {371-381}, doi = {10.1155/S0161171281000239}, zbl = {0475.30008}, language = {en}, url = {http://dml.mathdoc.fr/item/03745556} }
Gervais, Robert; Rubel, Lee A. Yet another characterization of the sine function.. International Journal of Mathematics and Mathematical Sciences, Tome 4 (1981) pp. 371-381. doi : 10.1155/S0161171281000239. http://gdmltest.u-ga.fr/item/03745556/