Luzhetskyi, Volodymyr, Volodymyr Mykhailevych, Olexiy Mykhailevych, і Valentyna Kaplun. 2015. «EVALUATION OF NUMBER OF THE UNIQUE LINEAR RECURRENT SEQUENCES OF THE SECOND ORDER». Scientific Works of Vinnytsia National Technical University, вип. 2 (Листопад). https://works.vntu.edu.ua/index.php/works/article/view/280.