TY  - GEN
TI  - Cr+ and Cr3+ defects in CaF2 and SrF2
SN  - 0163-1829
PY  - 1985///
PB  - Physical review. B, Condensed matter
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1103/physrevb.32.4158
ER  -