Akhtamova, S. S., V. Yu. Grishunov, A. P. Lyapin, and S. A. Tikhomirov. “ON SECTIONS OF GENERATING SERIES IN LATTICE PATH PROBLEMS”. Applied Mathematics & Physics 52, no. 2 (July 6, 2020): 146-151. Accessed May 18, 2024. https://maths-physics-journal.ru/index.php/journal/article/view/16.