1. G. A. Sojka, in “The Photosynthetic Bacteria,” ed. by R. K. Clayton and W. R. Sistrom, Plenum Press, New York, 1978, pp. 707–718.
2. R. C. Fuller, in “The Photosynthetic Bacteria,” ed. by R. K. Clayton and W. R. Sistrom, Plenum Press, New York, 1978, pp. 691–705.
3. “Progress in Isoelectric Focusing and Isotachophoresis,” ed. by P. G. Righetti, American Elsevier, New York, 1974.
4. M. F. Utter and Η. M. Kolenbrander, in “The Enzyme,” ed. by P. D. Boyer, Academic Press, New York, 1972, pp. 117–168.