Ntifafa, Yao, et al. “Polyamidoamine Epichlorohydrin (PAAE) Wet-Strength Agent: Generations, Application, Performance, and Recyclability in Paperboard and Linerboard”. BioResources, vol. 19, no. 2, Apr. 2024, pp. 3895-20, https://ojs.bioresources.com/index.php/BRJ/article/view/23037.