1. Non-surgical recovery of bovine eggs;Elsden;Theriogenology,1976
2. Non-surgical embryo transfer in the cow;Bowen;Theriogenology,1978
3. Superovulation and embryo transfer in cattle;Seidel;Science,1981
4. Thibier M. Embryo transfer statistics from around the world IETS Newsletter 1998 16 http://www.iets.org/pdf/comm_data/December1998.pdf
5. A contrasted year for the world activity of the animal embryo transfer industry: a report from the IETS Data Retrieval Committee;Thibier;IETS Newsletter,2002