RETRACTION NOTICE
As of 14 April 2016, the paper “A Diophantine system about equal sum of cubes” by Zhi Ren has been retracted and removed from the server!
We were notified that an identical version of this paper has been published in the Journal of Integer Sequences, Vol. 16(2013), Article 13.7.8., without the author informing in advance the Editorial Board of the Notes on Number Theory and Discrete Mathematics.
The Publisher apologizes for any inconvenience caused!
