Samoilenko, A. M., Chuiko, S. M. and Nesmelova, O. V. (2020) “Nonlinear boundary-value problems unsolved with respect to the derivative”, Ukrains’kyi Matematychnyi Zhurnal, 72(8), pp. 1106-1118. doi: 10.37863/umzh.v72i8.5986.