Rajchel, K. and Szczęsny, J. (2016) “New method to solve certain differential equations”, Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, 15, pp. 107–111. Available at: https://studmath.uken.krakow.pl/article/view/13146 (Accessed: 31 October 2026).