Kardzhali / Sofia / Hamburg / Paris / Perperek / /
Country
Bulgaria / Greece / / /
Event
Natural Disaster / Environmental Issue / /
Facility
Chernoochene dam / University of Plovdiv / Plovdiv University of Plovdiv Publishing House / Plovdiv University of Plovdiv Publishing House Shell Size / Plovdiv University / South-East Bulgaria Stanislava Y. Vasileva University of Plovdiv / /
MusicGroup
Excel / calculated using the program MS Excel / /
NaturalFeature
Sakar Mountain / Varbitsa River / Upper Thracian Lowland / Maritsa River / Perperek River / Arda River / Devetashko Plateau / Surnena Sredna Gora Mountain / Danube River / Sveti Iliiski Heights / Thracian Valley / /
Organization
Faculty of Biology / University of Plovdiv / Plovdiv University of Plovdiv Publishing House Shell Size of the Freshwater Snail Radix / Plovdiv University / Union of Scientists in Bulgaria / South-East Bulgaria Stanislava Y. Vasileva University of Plovdiv / Department of Ecology and Environmental Conservation / Department of Ecology / Plovdiv Publishing House / /