1. Annual endocrine cycles and environment in birds with special reference to male duck;Assenmacher,1978
2. Extrathyroidal conversion of thyroxine to triiodothyronine in a bird: The Peking duck;Astier;Gen. Comp. Endocrinol,1978
3. Migration: Control and metabolic physiology;Berthold,1975
4. A specific saturation assay technique for serum tri-iodothyronine;Brown,1970