1. The determination of amino acids by high voltage paper electrophoresis;Blackburn;Methods Biochem. Anal.,1965
2. “Amino Acid Determinations.”;Blackburn,1968
3. Block, R.J., Durrum, E. L., and Zweig, G., eds. (1958) “A Manual of Paper Chromatography and Paper Electrophoresis,” 2nd ed. Academic Press, New York.
4. “Thin-Layer Chromatography.”;Bobbitt,1963