KAMLESH R DESALE, and SHAMKANT L PATIL. “SYNTHESIS AND BIOLOGICAL EVALUATION OF N-(SUBSTITUTED CINNAMOYL)-N’ (PYRIDIN-2-YL) PIPERAZINE AS ANTIOXIDANTS”. International Journal of Pharma and Bio Sciences, vol. 4, no. 3, Sept. 2013, pp. 97-103, https://ijpbs.net/index.php/journal/article/view/2436.