Seyfioglu Polat, Zelal, et al. “Interaction of Water and Fiber Free and Fiber Reinforced Acrylic Resins: Studied by 400 MHz NMR”. Asian Journal of Chemistry, vol. 23, no. 10, Aug. 2011, pp. 4645-8, https://asianpubs.org/index.php/ajchem/article/view/10918.