Liu, J.-Q. et al. 2023. Effects of Different Vitrification Temperatures and Cryoprotective Agent Concentrations on Ultrastructure and Apoptosis Related Proteins in Bovine GV Stage Oocytes. Proceedings of the Bulgarian Academy of Sciences. 76, 5 (May 2023), 810–818. DOI:https://doi.org/10.7546/CRABS.2023.05.18.