Sushko, I. et al. 2024. 1d piecewise smooth map: exploring a model of investment dynamics under financial frictions with three types of investment projects. Ukrains’kyi Matematychnyi Zhurnal. 75, 12 (Jan. 2024), 1681–1696. DOI:https://doi.org/10.3842/umzh.v75i12.7721.