Popovych, R. B. (2014). Sharpening of the Explicit Lower Bounds for the Order of Elements in Finite Field Extensions Based on Cyclotomic Polynomials. *Ukrains’kyi Matematychnyi Zhurnal*, *66*(6), 815–825. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2179