Klapper, D.G. & Clem, L.W. (1977)
Phylogeny of immunoglobulin structure and function; characterization of the cysteine-containing peptide involved in the pentamerization of shark IgM. Developmental and Comparative Immunology, 1(2), 81–91
DOI: 10.1016/S0145-305X(77)80002-5

Mccumber, L.J. & Clem, L.W. (1976)
A comparative study of J chain: Structure and stoichiometry in human and nurse shark IgM. Immunochemistry, 13(6), 479–484
DOI: 10.1016/0019-2791(76)90322-0

Klapper, D.G. & Clem, L.W. (1972)
Studies on the mild reduction of shark polymeric and monomeric IgM. Comparative Biochemistry and Physiology – Part A, Physiology, 42(1), 241–247
DOI: 10.1016/0300-9629(72)90383-0

Clem, L.W. & Leslie, G.A. (1971)
Production of 19S IgM antibodies with restricted heterogeneity from sharks. Proceedings of the National Academy of Sciences of the United States of America, 68(1), 139–141

Fidler, J.E. & Clem, L.W. & Small, P.A. (1969)
Immunoglobulin synthesis in neonatal nurse sharks (Ginglymostoma cirratum). Comparative Biochemistry and Physiology, 31(2), 365–371
DOI: 10.1016/0010-406X(69)91660-0

Clem, L.W. & de Boutaud, F. (1967)
Studies on elasmobranch immunoglobulins. In P.W. Gilbert, R.F. Mathewson, & D.P. Rall, (Eds.), Sharks, skates and rays. (pp. 581–591). John Hopkins Press, Baltimore