MOLDABEKOV, Z. A.; RAMAZANOV, T. S. Analysis of the linearized quantum hydrodynamic model. International Journal of Mathematics and Physics, [S. l.], v. 4, n. 2, p. 72–74, 2013. Disponível em: https://ijmph.kaznu.kz/index.php/kaznu/article/view/81. Acesso em: 6 may. 2024.