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Catsadorakis, G.; Aleks, P. .; Avramoski, O.; Bino, T.; Bojadzi, A.; Brajanoski, Z.; Fremuth, W. .; Kazoglou, Y. .; Koutseri, . I. .; Logotheti, A. .; Malakou, M. .; Nikolaou, H. .; Nikolaou, L. .; Putilin, K.; Shumka, S.; Uzunova, D.; Velevski, M. Waterbirds Wintering at the Prespa Lakes As Revealed by Simultaneous Counts in the Three Adjoining Littoral States. MJEE 2013, 15, 23-31.