Kulikov, Anatolij, Dmitrij Kulikov, and Michael Radin. “Periodic Cycles in the Solow Model With a Delay effect”. Mathematical Modelling and Analysis 24, no. 2 (March 18, 2019): 297-310. Accessed December 2, 2024. https://mma.vgtu.lt/index.php/MMA/article/view/5382.