TY - GEN TI - Electron-paramagnetic-resonance and fluorescence-line-narrowing measurements of the lasing center in Cr-doped forsterite SN - 0163-1829 PY - 1991/// PB - Physical review. B, Condensed matter N1 - Publication Type: Journal Article UR - https://doi.org/10.1103/physrevb.44.12589 ER -