Martynyuk, A. A., & Martynyuk-Chernienko, Y. A. (2014). Analysis of the Set of Trajectories of Fuzzy Equations of Perturbed Motion. Ukrains’kyi Matematychnyi Zhurnal, 66(11), 1512–1527. https://umj.imath.kiev.ua/index.php/umj/article/view/2242