1. 1) M. Dondi, G. Guarini, M. Raimondo and C. Zanelli, Waste Manage., 29, 1945–1951 (2009).
2. 2) S. Mostaghel and C. Samuelsson, Waste Manage., 30, 140–144 (2010).
3. 3) M. Yamashita, S. Matsumoto, T. Akai, H. Sugita, Y. Imoto, T. Komai and H. Sakanakura, J. Ceram. Soc. Jpn., 122, 1020–1027 (2014).
4. 4) H. Sugita, Y. Imoto, M. Yamashita, H. Sakakura, T. Akai and T. Komai, Proc. 21th Ann. Conf. Japan Soc. Mate. Cycles and Waste Manage. (4–6 Nov. 2010, Kanazawa), P1-D4-7 [in Japanese].
5. 5) A. D’Souza and C. G. Pantano, Phys. Chem. Glasses, 37, 79–83 (1996).