FITISKINA, Anna A. Fractional hours in the composition of the Teaching on Numbers by Kirik the Novgorodian. Shagi, [S. l.], v. 7, n. 3, p. 60–66, 2021. DOI: 10.22394/2412-9410-2021-7-3-60-66. Disponível em: https://shagi.owebs.ru/article/view/9630. Acesso em: 8 nov. 2026.