Zoltan Csajb ´ ok and Tamas Mih ´ alyde ´ ak (2012) “Partial Approximative Set Theory: A Generalization of the Rough Set Theory”, International Journal of Computer Information Systems and Industrial Management Applications, 4, p. 14. Available at: https://cspub-ijcisim.org/index.php/ijcisim/article/view/192 (Accessed: 20 February 2025).