@article{04122053, title = {How many numbers satisfy the }, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {12}, year = {1989}, pages = {791-796}, doi = {10.1155/S0161171289000979}, zbl = {0685.10008}, language = {en}, url = {http://dml.mathdoc.fr/item/04122053} }
Krasikov, I. How many numbers satisfy the . International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 791-796. doi : 10.1155/S0161171289000979. http://gdmltest.u-ga.fr/item/04122053/