Asashima, Makoto (2001). "Spemann's influence on Japanese developmental biology". International Journal of Developmental Biology. 45 (1): 57–65. doi:10.1387/ijdb.11291871. PMID11291871.
Grunz, Horst (2001). "Developmental biology of amphibians after Hans Spemann in Germany". International Journal of Developmental Biology. 45 (1): 39–50. doi:10.1387/ijdb.11291869. PMID11291869.
Mikhailov, Alexander (2001). "Consequences of the Spemann-Mangold organizer concept for embryological research in Russia: Personal impressions". International Journal of Developmental Biology. 45 (1): 83–96. doi:10.1387/ijdb.11291874. PMID11291874.
Asashima, Makoto (2001). "Spemann's influence on Japanese developmental biology". International Journal of Developmental Biology. 45 (1): 57–65. doi:10.1387/ijdb.11291871. PMID11291871.
Grunz, Horst (2001). "Developmental biology of amphibians after Hans Spemann in Germany". International Journal of Developmental Biology. 45 (1): 39–50. doi:10.1387/ijdb.11291869. PMID11291869.
Mikhailov, Alexander (2001). "Consequences of the Spemann-Mangold organizer concept for embryological research in Russia: Personal impressions". International Journal of Developmental Biology. 45 (1): 83–96. doi:10.1387/ijdb.11291874. PMID11291874.