Gaya APA

Avram, N, M., Brik, M, G. (2013). Optical properties of 3d-ions in crystals : spectroscopy and crystal field analysis . Heidelberg: Springer Berlin.

Gaya MLA

Avram, Nicolae, M.., Brik, Mikhail, G.. "Optical properties of 3d-ions in crystals : spectroscopy and crystal field analysis". Heidelberg: Springer Berlin, 2013. Electronic Resource.