Li Х, Makhnev АА, Belousov ИН. Some Shilla Graphs with b = 5 do not Exist. Вест. ПГУ. Мат. Мех. Инф. [Internet]. 2022 Jul. 5 [cited 2024 Jul. 3];(2 (57):40-5. Available from: https://press.psu.ru/index.php/Math/article/view/5393