12Ganjali, Mohammad Reza; Gupta, Vinod Kumar; Faridbod, Farnoush; Norouzi, Parviz (2016). "Applications of the Lanthanide Series in Human Life". Lanthanides Series Determination by Various Analytical Methods. pp.37–58. doi:10.1016/B978-0-12-804704-0.00002-5. ISBN978-0-12-804704-0.
↑Lee, Paul P.; Hwu, R. Jennifer; Sadwick, Laurence P.; Kumar, B. R.; Chern, Jehn-Huar H.; Lin, C. H.; Balasubramaniam, H. (1999). "Contacts to GaAs, InP, and GaP for high-temperature and high-power applications". In Hwu, R. Jennifer; Wu, Ke (eds.). Terahertz and Gigahertz Photonics. Vol.3795. p.217. doi:10.1117/12.370167. ISBN978-0-8194-3281-0.
↑Ren, Yufang; Mcng, Jian (June 1988). "On the Optical and Electrical Properties of Dysprosium and Ytterbium Monophosphides". Chinese Journal of Applied Chemistry. 5 (3): 39–42. doi:10.3724/j.issn.1000-0518.1988.3.39.