see here

first_text= Organizational and Technical Support of the Sessions, Carried out by the Supervision Committee on the Operational Program „Environment 2007-2013” 8 - 10 June 2011, Hotel Hissar SPA Complex, Hissar Scientific Conference on Biodiversity and Environment With the support of Bulgarian Academy оf Sciences and Sofia University “St. Kliment Ohridski” 24 – 25 June 2010, Sofia University "St. Kliment Ohridski"