Посилання:On colouring integers avoiding t-AP distance-sets / T. Ahmed // Algebra and Discrete Mathematics. — 2016. — Vol. 22, № 1. — С. 1-10. — Бібліогр.: 1 назв. — англ.
Підтримка:The author would like to thank Hunter Snevily (deceased) for suggesting the problem, Clement Lam and Srecko Brlek for their support,and Andalib Parvez for carefully reading the manuscript.