Dimitrov, T.,
Georgieva, L., &
Samuneva, B.
(1997).
Zircon Ceramic Pigments Synthesis with the Participation of Different Chromophores. // <I>[Twelfth]<D> 12th Conference on Glass and Ceramics, 24-26 September, Varna, 1996: Proc.- Sofia : Science Invest, 1997 [ деп.1999] ([София : Съюз на учените в България]), c. 384-389..