BOZOROVA, D. S. qizi. Ikkita buzilish chizig’iga ega kvachiziqli elliptik tipdagi tenglamalar to’g’risida boshlang’ich tushunchalar va ularning qo’llanishi haqida. Science and Education, [S. l.], v. 4, n. 3, p. 26–40, 2023. Disponível em: https://openscience.uz/index.php/sciedu/article/view/5308. Acesso em: 22 dec. 2024.