SHEN, JIANHUA, and ZHICHENG WANG. “GLOBAL ATTRACTIVITY IN A NONAUTONOMOUS DELAY-LOGISTIC EQUATION”. Tamkang Journal of Mathematics 26, no. 2 (June 1, 1995): 159–164. Accessed May 5, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4393.