Sheng, Weihong, and Wei Nian Li. “A New Pachpatte Type Dynamic Inequality on Time Scales”. Journal of Progressive Research in Mathematics 14, no. 2 (December 11, 2018): 2361-2365. Accessed December 22, 2024. http://scitecresearch.com/journals/index.php/jprm/article/view/1651.