Cheng, C. H., Zhao, Y., Feng, Y., Zhang, H., Nishiyama, M., Koshizuka, N. & Murakami, M., 2005, Frontiers in Superconducting Materials.Springer Berlin Heidelberg, p. 619-65032 p.
Itagaki, M., Araki, H., Watanabe, K., Katayama, H. & Noda, K., 2006, Passivation of Metals and Semiconductors, and Properties of Thin Oxide Layers.Elsevier, p. 317-3237 p.