Armand, Atefeh, and Zienab Gouyandeh. “The Tau-Collocation Method for Solving Nonlinear Integro-Differential Equations and Application of a Population Model”. International Journal of Mathematical Modelling & Computations, vol. 7, no. 4, Nov. 2017, pp. 265-76, https://oiccpress.com/ijm2c/article/view/11287.