Tsvetkov, T., Daskalova, D., Petrova, N., Blagova, H., Vitanova, D. and Shumkova, R. (2024) “Trehalose, Glycerol and Dimethyl Sulfoxide Supplementation for Cryopreservation Media of Honey Bee Drone Semen”, Proceedings of the Bulgarian Academy of Sciences. Sofia, Bulgaria, 77(7), pp. 997–1004. doi: 10.7546/CRABS.2024.07.06.