S. Pakeva

Electric and photoelectric properties of polycrystalline copper sulphide

K. Germanova, S. Pakeva, 1985 .

On the role of moisture in the ageing and restoration processes in ZnS: Cu electroluminophores

K. Kolentsov, S. Pakeva, 1984 .

The influence of the base on some ZnS-Sn electroluminophore characteristics

R. Dafinova, S. Pakeva, 1988 .