@article{bwmeta1.element.bwnjournal-article-aav59i2p183bwm, author = {Sander, J.}, title = {On 4/n = 1/x + 1/y + 1/z and Rosser's sieve}, journal = {Acta Arithmetica}, volume = {58}, year = {1991}, pages = {183-204}, zbl = {0736.11052}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav59i2p183bwm} }
Sander, J. On 4/n = 1/x + 1/y + 1/z and Rosser's sieve. Acta Arithmetica, Tome 58 (1991) pp. 183-204. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav59i2p183bwm/