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, Prague, Czech Republic, v. 46, n. 6, 2006. DOI: 10.14311/900. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/900. Acesso em: 11 apr. 2025.