Simonarson, B. & Watts, D.C. (1972)
Purification and properties of adenosine triphosphate-creatine phosphotransferase from muscle of the dogfish Scylliorhinus canicula. Biochemical Journal, 128(5), 1241–1253

Alexander, M.D. & Haslewood, E.S. & Haslewood, G.A.D. & Watts, D.C. & Watts, R.L. (1968)
Osmotic control and urea biosynthesis in selachians. Comparative Biochemistry and Physiology, 26(3), 971–978
DOI: 10.1016/0010-406X(68)90017-0

Watts, D.C. & Watts, R.L. (1966)
Carbamoyl phosphate synthetase in the elasmobranchii: Osmoregulatory function and evolutionary implications. Comparative Biochemistry and Physiology, 17(3), 785–798
DOI: 10.1016/0010-406X(66)90121-6

Skutsch, G.M. & Watts, D.C. & Baldwin, E. (1966)
The synthesis of acetyl phosphate by homogenates of elasmobranch liver. Comparative Biochemistry and Physiology, 17(3), 799–800
DOI: 10.1016/0010-406X(66)90122-8