1. Das Hormon des hypophysenvorderlappens: Testobjekt zum Nachweis des hormons;Aschheim;Klin Wochenschr,1927
2. The Zondek–Ascheim pregnancy test;Zondek;Can Med Assoc J,1930
3. A simple, rapid procedure for the laboratory diagnosis of early pregnancies;Friedman;Am J Obstet Gynecol,1931
4. Metabolic changes associated with endocrine activity and the reproductive cycle in Xenopus laevis: IV. The effects of injection of ovarian and pituitary extracts on the serum calcium in normal, ovariectomised and hypophysectomised toads;Shapiro;J Exp Biol,1934
5. An assay method for human chorionic gonadotropin;Delfs;Endocrinology,1941