PRAJZLER, V.; BURIAN, Z.; HÜTTEL, I.; ŠPIRKOVÁ, J.; HAMÁČEK, J.; OSWALD, J.; ZAVADIL, J.; PEŘINA, V. Properties of Erbium and Ytterbium Doped Gallium Nitride Layers Fabricated by Magnetron Sputtering. Acta Polytechnica, [S. l.], v. 46, n. 6, 2006. DOI: 10.14311/900. Disponível em: https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/900.. Acesso em: 13 may. 2025.