Burstein, Y., Bazin, H., Ziv, E., Kantor, F., & Schechter, I. (1982). Sequence Variability At the N-terminal Leader Peptides of Rat Immunoglobulin Light Chain Precursors. Biochemical and Biophysical Research Communications, 105(4), 1408-1415. https://doi.org/10.1016/0006-291X(82)90944-5 (Original work published 1982)