1. C. Benecke, W. Busse, H.-E. Gumlich, and J.-J. Moros, Time-Resolved Spectroscopy of the Low-Energy Emission Bands of Highly Doped Zn 1−x Mn x S, Phys. Status Solidi (b)142 (1987), 301.
2. S.W. Biernacki, Parametrization of Crystal Field Spectra of Mn 2+ in ZnSe and ZnS, Phys. Status Solidi (b)132 (1985), 557.
3. S. W. Biernacki and B. Clerjaud, Optical Spectra of Ti, V, and Co in III-Vand II–VI Crystals, Acta Phys. Pol. A73 (1988), 251.
4. S. W. Biernacki, G. Roussos, and H.-J. Schulz, The Luminescence of V 2+ (d 3) and V 3+ (d 2 ) Ions in ZnS and an Advanced Interpretation of Their Excitation Levels, J. Phys. C21 (1988), 5615.
5. S. W. Biernacki, G. Roussos, and H.-J. Schulz, (Mo-P-23) Excitation Terms of V 3+ and V 2+ Centers in ZnS Crystals, Acta Phys. Pol. A73 (1988), 259.