Stancekova, D., J. Semcer, J. Holubjak, and M. Drbul. “Machinability of Nano-Structured Biomaterials for Dental Implants”. Communications - Scientific Letters of the University of Zilina, Vol. 16, no. 3A, Oct. 2014, pp. 96-100, http://journals.uniza.sk/index.php/communications/article/view/550.