Fleishman, D.G. & Saulus, A.A. & Vasilieva, V.F. (1986)
Lithium in marine elasmobranchs as a natural marker of rectal gland contribution in sodium balance.
Comparative Biochemistry and Physiology – Part A, Physiology, 84(4), 643–648 DOI: 10.1016/0300-9629(86)90379-8