Yu, J.-F. ., Q. . Lu, Y.-Y. . Li, J. . Xu, and H. . Ye. “Mechanisms of the Decline in Reproductive Fitness With Age in the Moth Spodoptera Litura”. International Research Journal of Insect Sciences, vol. 1, no. 1, Mar. 2014, pp. 1-11, http://archive.conscientiabeam.com/index.php/106/article/view/435.