Majerus, V., De Roover, R., Etienne, D., Donnay, I., Massip, A., & Dessy, F. (1998). Production of blastocyst from prepubertal calf oocytes recovered by ovum pick-up. Theriogenology, 49(1), 291. https://hdl.handle.net/2078.5/189832 (Original work published 1998)