BOBRIK , R. V. Stability in the average quadratic for the harmonic oscillator with a random parameter. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 9, p. 1276–1278, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8180. Acesso em: 5 dec. 2025.