Dergiler / Turkish Journal of Physics / 1995 / Cilt: 19 - Sayı: 9Examination of emission and excitationspectra of undoped and Ca++ doped NH4CLA. K. NEHATE,T. R. JOSHIDergiTurkish Journal of PhysicsSayı1995 · Cilt: 19 - Sayı: 9Sayfa1130–1136DOI—