UMAROV, Shukhrat. Modified operator method for developing mathematical models of valve converters with a periodic structure. PROBLEMS OF ENERGY AND SOURCES SAVING, [S. l.], v. 3, n. 3, p. 51–60, 2024. Disponível em: https://energy.i-edu.uz/index.php/journal/article/view/69. Acesso em: 7 feb. 2025.