Milivojević, Zoran, and Milica Mladenović. “ESTIMATION OF FUNDAMENTAL FREQUENCY OF COMPLEX SINE SIGNAL USING Q-SE AND PCC INTERPOLATION WITH 1P KEYS KERNEL ALGORITHMS - COMPARATIVE ANALYSIS”. KNOWLEDGE - International Journal , vol. 60, no. 3, Sept. 2023, pp. 491-6, http://ojs.ikm.mk/index.php/kij/article/view/6292.