ІЧАНСЬКА, Наталія Василівна. GROUP CLASSIFICATION OF THE EVOLUTION EQUATION OF SECOND USAGES. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, [S. l.], n. 1(37), p. 53–61, 2019. Disponível em: https://pvntsh.nung.edu.ua/index.php/number/article/view/64. Acesso em: 11 apr. 2025.