@article{GDZPPN002077981, title = {Note on Arithmetical Progressions with Equal Products of Five Terms.}, journal = {Elemente der Mathematik}, volume = {27}, year = {1972}, pages = {11-12}, zbl = {0225.10011}, url = {http://dml.mathdoc.fr/item/GDZPPN002077981} }
Szymiczek, K. Note on Arithmetical Progressions with Equal Products of Five Terms.. Elemente der Mathematik, Tome 27 (1972) pp. 11-12. http://gdmltest.u-ga.fr/item/GDZPPN002077981/