2020
Svilengrad, Bulgaria , 2020
Sofia, Bulgaria , 2016
Varna, Bulgaria , 2016
Sofia, Bulgaria , 2015
Sofia, Bulgaria , 2012
Varna, Bulgaria , 2011
Sofia, Bulgaria , 2010
Sofia, Bulgaria , 2009
Plovdiv, Bulgaria , 2009
2009
Rousse, Bulgaria , 2008
Sofia, Bulgaria , 2008