Cichocki, Piotr, and Jerzy Pokojski. “Intelligent Personal Assistant Concept in Context of Fault Analysis”. Computer Assisted Methods in Engineering and Science 14, no. 4 (December 31, 2007): 591–600. Accessed March 3, 2026. https://cames.ippt.pan.pl/index.php/cames/article/view/792.