Perestyuk M. O., & SlyusarchukV. Y. (2021). Application of the Green–Samoilenko function and operator to the study of non-Lipschitz differential equations. Ukrains’kyi Matematychnyi Zhurnal, 73(12), 1673 - 1690. https://doi.org/10.37863/umzh.v73i12.6482