Upadhyay, R. K. K., R. K. K. Naji, and N. Kumari. “Dynamical Complexity in Some Ecological Models: Effects of Toxin Production by Phytoplankton”. Nonlinear Analysis: Modelling and Control 12, no. 1 (January 25, 2007): 123–138. Accessed May 2, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/14726.