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Tsvetkov, T.; Daskalova, D.; Petrova, N.; Blagova, H.; Vitanova, D.; Shumkova, R. Trehalose, Glycerol and Dimethyl Sulfoxide Supplementation for Cryopreservation Media of Honey Bee Drone Semen. C. R. Acad. Bulg. Sci. 2024, 77, 997–1004.