Spectral-luminescent properties of orthorhombic and monoclinic tungstate and molybdate crystals doped with europium, terbium, thulium, and ytterbium ions - TDX:4036
Spectral-luminescent properties of orthorhombic and monoclinic tungstate and molybdate crystals doped with europium, terbium, thulium, and ytterbium ions