Kulinich, G. L. (1997). Qualitative analysis of the influence of random perturbations of “white-noise” type applied along the vector of phase velocity on a harmonic oscillator with friction. Ukrains’kyi Matematychnyi Zhurnal, 49(1), 35–46. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/4985