Proscevičius, T., V. Raudonis, A. Kairys, A. Lipnickas, and R. Simutis. 2010. “Autoassociative Gaze Tracking System Based on Artificial Intelligence”. Elektronika Ir Elektrotechnika 101 (5):67-72. https://eejournal.ktu.lt/index.php/elt/article/view/9428.