Kawula, T. H., Aho, E. L., Barritt, D. S., Klapper, D. G., & Cannon, J. G. (1988). Reversible phase variation of expression of Neisseria meningitidis class 5 outer membrane proteins and their relationship to gonococcal proteins II.

Kawula, T H., E L. Aho, D S. Barritt, D G. Klapper, e J G. Cannon. Reversible Phase Variation of Expression of Neisseria Meningitidis Class 5 Outer Membrane Proteins and Their Relationship to Gonococcal Proteins II. 1988.

Kawula, T H., et al. Reversible Phase Variation of Expression of Neisseria Meningitidis Class 5 Outer Membrane Proteins and Their Relationship to Gonococcal Proteins II. 1988.