St. Djambazov, Y. Ivanova, A. Yoleva, N. Nedelchev , “Ceramic pigments on the base of the CoO – ZnO – SiO2 system obtained by a sol-gel method”, Ceramics International , 24, 4, 1998, 281 – 284.
St. Djambazov, A. Yoleva, “Synthesis and properties of lanthanum hexaaluminate ceramic La1xCaxAl11-yMgyTizO18”, Ceramic International, 27, 2001, 899-901.
St. Djambazov, A. Yoleva, “Investigation of sanitaryware porcelain scrap behaviour in single-fired wall tile bodies”, Interceram, vol. 51, N6, 2002, 408-409.
St. Djambazov, A. Yoleva, G. Amzov, “Investigation of the influence of boron-zirconium frit on the properties of porcelain glaze for sanitaryware”, Glass Technology – European Journal of Glass and Technology, Part A, v. 47, N 5, October 2006, 145-147.
St. Djambazov, A. Yoleva, P. Markov, La piedra arenisca argillosa Vinishte una material prima potencialpar alas pastas blancas ceramicas, IX World Congress on Ceramic Tile Quality, QUALICER’2006, 5-8march 2004 Castelon, Spain, 2006.
A. Yoleva, O. Petrov, S. Djambazov, O. Malinov, D. Stoycheva, “Clinoptilolite in volcanic neck structure near Kralevo deposit, Haskovo region (Bulgaria)”, Editors: R.S. Bowman and S. E. Delap, Zeolite ‘06-7thInternational Conference on the Occurrence, Properties and Utilization of Natural Zeolites, Soccorro, New Mexico USA, 16-21 July 2006, 256-257.
St. Djambazov, A. Yoleva, V. Hristov, S. Valkanov, Silicon nitride ceramic, Proceeding 3-td Balkan Conference on Glass Science and Technology, Editors: B. Samuneva, S. Bachvarov, I. Gutzow, Y.Dimitriev, 2007, 96 – 101.
St. Djambazov, A. Yoleva, P. Markov, Ceramic bodies for clinker articles with participation of new red-firing clay from North-Weast Bulgaria, Proceeding 3-td Balkan Conference on Glass Science and Technology, Editors: B. Samuneva, S. Bachvarov, I. Gutzow, Y. Dimitriev, 2007, 154-158.
A. Yoleva, P. Djambazov, S. Djambazov, O. Petrov, Structural changes in opal from stambolovo deposit (Bulgaria) after thermal treatment, Proceeding 3-td Balkan Conference on Glass Science and Technology,Editors: B. Samuneva, S. Bachvarov, I. Gutzow, Y. Dimitriev, 2007, 203 – 208.
A. Yoleva, St. Dambazov, V. Hristov, “Aluminum titanate ceramic with mullite adition”, Ceramics-Silikaty, 53, 1, 2009, 21-25.
S. P. Djambazov, A. P. Yoleva, O. K. Malinov, „Red-firing ceramic bodies for clinker tiles and bricks”, Tile & Bricks International Manual, 2009, 8-10.
S. Djambazov, O. Malinov, A. Yoleva, „White halloysitic clay from the Еast Rhodopian paleogenedepression at Kralevo village, Haskovo district, Bulgaria - potential raw material for ceramic industry”,Interceram, 58 [4] 2009 210-212.
A. Yoleva, St. Dambazov, V. Hristov, “Aluminum titanate ceramic with mullite adition”, Ceramics-Silikaty, 53, 1, 2009, 21-25.
S. Djambazov, O. Malinov, A. Yoleva, „White halloysitic clay from the Еast Rhodopian paleogenedepression at Kralevo village, Haskovo district, Bulgaria - potential raw material for ceramic industry”,Interceram, 58 [4] 2009 210-212.
A. Yoleva, S. Djambazov, D. Arsenov, V. Hristov, Effect of SiO2 addition on thermal hysteresis of aluminum titanate, Journal of the University of Chemical Technology and Metallurgy, 45, 3, 2010, 269-274.
St. Djambazov, A. Yoleva, “Ceramic raw materials for facing tiles from Northeastern Bulgaria”,Interceram, 60, [3], 2011, 190-193.
S. Djambazov, A. Yoleva, Y. Ivanova, Y. Vueva, Sintering of aluminum titanate – barium titanateceramics prepared from sol-gel powders, Journal of the University of Chemical Technology and Metallurgy, 46, 1, 2011, 35-40.
A. Yoleva, S. Djambazov, G. Chernev, Influence of the puzzolanic additives trass and zeolite on cement properties, Journal of the University of Chemical Technology and Metallurgy, 46, 3, 2011, 261-266.
Albena Yoleva, Stoyan Djambazov, Yordanka Ivanova, Elena Kashchieva, Sol-gel synthesis of titanatephases from Aurivillius and Sillenite type (Bi4Ti3O12 and Bi12TiO20), Journal of the University of Chemical Technology and Metallurgy, 46, 3, 2011, 255-260.
S. Djambazov, O. Malinov, A. Yoleva, Y. Stefanov, P. Pashev, Investigation of quartz-kaolinite stiff clay of kara mihal deposit (Northeastern Bulgaria) as potential raw material for the production of floor tiles,Qualicer 2012.
S. Djambazov, O. Malinov, A. Yoleva, P. Pashev, Plastic quartz-kaolinite and quartz-chlorite-montmorillonite clays from kara mihal deposit in northeastern bulgaria as a raw material for the production of facing tiles, Proceedings of the XV Balkan mineral processing congress, Sozopol, Bulgaria, June 12 – 16, vol.2, 92-95, 2013.
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