Effect of electric fields on the spectra of off-centre substitutional defects in strontium oxide A. Edgar, I. H. Brunskill, N. B. Manson et Y. HaiderJ. Phys. Colloques, 41 C6 (1980) C6-415-C6-418DOI: https://doi.org/10.1051/jphyscol:19806106