1. Multiplication of bovine embryos
2. The use of Hoechst 33342 to stain donor nuclei used in the bovine nuclear transfer procedure
3. Production of identical bovine offspring by nuclear transfer
4. A. Clement-Sengewald, and G. Brem , 1990 : Electrofusion of karyoplasts and oocytes. Proc. of the 4th FELASA Symposium, 10.15.6.90, Lyon, France.
5. A. Clement-Sengewald, U. Berg, and G. Brem , 1990 . The use of IVM/IVF bovine embryos in nuclear transfer experiments. Proc. of the 4th French-Czechoslovak Meeting, 14.15.5.90, Praha, Szechoslovakia, 54 , abstract.