1. Ornithine cycle and uricolytic enzymes in four bivalve molluscs;Andrews;Comp. Biochem. Physiol.,1972
2. Urea synthesis by a leech, Hiruido medicinales;Bishop;Am. Zool.,1970
3. Nitrogen metabolism and excretion: regulation of intracellular amino acid concentrations;Bishop,1976
4. Arginine and urea biosynthesis in the earthworm, Lumbricus terrestris;Bishop;Comp. Biochem. Physiol.,1965
5. Nitrogen excretion;Campbell,1973