1. J. H. Gaarenstroom andS. E. de Jongh,A Contribution to the Knowledge of the Influences of Gonadotropic and Sex Hormones on the Gonads of Rats (Elsevier Publ. Co., New York 1946).
2. M. C. Woods andM. E. Simpson, Endocrinology69, 91 (1961).
3. R. von Berswordt-Wallrabe andF. Neumann, Excerpta med. Int. Congr. Series133, 950 (1967).
4. A. V. Boccabella, Endocrinology72, 787 (1963).
5. H. Steinbeck andR. von Berswordt-Wallrabe, Z. Versuchstier Kde8, 167 (1966).