Litovchenko, V.G., V.M. Naseka, and A.A. Evtukh. “Two-Channel Gettering of Recombination-Active Impurity in Polycrystalline Solar Silicon”. Ukrainian Journal of Physics 57, no. 1 (January 30, 2012): 73. Accessed April 24, 2025. https://ujp.bitp.kiev.ua/index.php/ukl/article/view/2021367.