BERIKHANOVA, G. E. Representation of resolvent of the biharmonic operator. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 64, n. 1, p. 4–8, 2019. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/589. Acesso em: 22 dec. 2024.