BASZTURA, Czesław, Wojciech MAJEWSKI, and Jerzy JURKIEWICZ. “Automatic Voice Recognition in Open Sets”. Archives of Acoustics 13, no. 3-4 (December 31, 1988): 205–220. Accessed March 14, 2026. https://acoustics.ippt.pan.pl/index.php/aa/article/view/3070.