The optical properties of trivalent rare earth ions (Er) doped borotellurite glass.Published in:Optics & Spectroscopy, 2014, v. 116, n. 3, p. 413, doi. 10.1134/S0030400X14030163By:Nurbaisyatul, E.;Azman, K.;Azhan, H.;Razali, W.;Noranizah, A.;Hashim, S.;Alajerami, Y.Publication type:Article