Kazlauskas, Kazys, Jaunius Kazlauskas, and Gintarė Petreikytė. “A Recurrent Algorithm for Spectrum Estimation”. Lietuvos matematikos rinkinys 50, no. proc. LMS (December 20, 2009): 368–373. Accessed October 27, 2025. https://test.zurnalai.vu.lt/LMR/article/view/17993.