Weng, Jian-Quan, et al. “Synthesis and Fungicidal Activity of Hydrazone Derivatives Containing 2(3H)-Benzothiazolone Moiety”. Asian Journal of Chemistry, vol. 24, no. 2, Nov. 2011, pp. 561-4, https://asianpubs.org/index.php/ajchem/article/view/8597.