1974
6. V. S. Kozhukharov, M. R. Marinov
Phase equilibrium in the TeO2 - V2O5 - ZnO system.
Annual Book of UCTM- Sofia, vol. ĠĠ²² (1974) 67. (in Bulgarian)
7. V. S. Kozhukharov, M. R. Marinov.
Electrical properties of glass in the TeO2 - V2O5 system;
Compt. read. Acad. Bulg. Sci. 27 (1974) 1557.