Antipoisoning activities in Bulgaria to enforce raptors conservation in the country by Dobromir D. Dobrev, Nikolai G. Terziev, Vladimir D. Dobrev, Volen S. Arkumarev, Anton Stamenov

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Movement Patterns of Juvenile and Immature Eastern Imperial Eagles from Bulgaria by Stoycho A. Stoychev, Dimitar A. Demerdzhiev, Dobromir D. Dobrev, Svetoslav D. Spasov, Volen Arkumarev, Anton Stamenov, Nikolai G. Terziev, Bernd-Ulrich Meyburg, Georgi S. Popgeorgiev

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