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Leonidas Charistos
Hellenic Institute of Apiculture, Hellenic Agricultural Org. ‘DEMETER’, Nea Moudania, 63 200, Greece
Fani Hatjina
Hellenic Institute of Apiculture, Hellenic Agricultural Org. ‘DEMETER’, Nea Moudania, 63 200, Greece
Maria Bouga
Lab of Agricultural Zoology and Entomology, Agricultural University of Athens, 75 Iera Odos Str., Athens, 11855, Greece
Mica Mladenovic
Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Zemun, Belgrade, Serbia
Anastasios D. Maistros
MELETITIKI S.E.M-H Ltd, 36 D. Soutsou Str., Athens, 11521, Greece