1. Determination of trace quantities of uranium by controlled-potential dc polarography in a tri-n-octylphosphine oxide extract;Belew;Microchem. J,1966
2. Zur Entwicklung einer polarographischen Mikrozelle für 0,02–0,04 ml Probelösung;Bersies;Z. Anal. Chem,1963
3. Capillary behavior in high sensitivity polarography;Cooke;Anal. Chem,1961
4. Fisher, D. J., Belew, W. L., and Kelley, M. T., A controlled-potential and derivative dc polarograph for rapid regular and first and second derivative dc polarography: circuits, theory, and performance characteristics. Unpublished.
5. A simple quasi-reference electrode. Applications in controlled-potential polarography and voltammetry and in chronopotentiometry;Fisher,1965