Danube through Serbia
National
- (2008) Preparation of the study: Danube through Serbia - results of a national program of the second Joint Danube Survey (6 - 22 September 2007). Ministry of Agriculture, Forestry and Water Management, Republic Water Directorate, Institute for Biological Research "Siniša Stanković”, Belgrade. Contract no. 01-660 (25.05.2008.).