Chen, Shao-Rui, et al. “Synthesis and Dual 5-HT1A SSRI Activities of Some Novel Arylpiperazine Derivatives of Duloxetine”. Asian Journal of Chemistry, vol. 24, no. 4, Dec. 2011, pp. 1680-4, https://asianpubs.org/index.php/ajchem/article/view/8817.