1. Akimov V N and Dobritsa S V 1992 Grouping of Frankia strains on the basis of DNA relatedness. System. Appl. Microbiol. 15, 372–379.
2. Akkermans A D L, Hahn D and Mirza M S 1991 Molecular ecology of Frankia: Advantages and disadvantages of the use of DNA probes. Plant and Soil 137, 49–54.
3. Akkermans A D L, Mirza M S, Harmsen H J M, Blok H J, Herron P R, Sessitsch A and Akkermans W M 1994 Molecular ecology of microbes: A review of promises, pitfalls and true progress. FEMS Microbiol. Rev. 15, 185–194.
4. An C S, Hong J S and Mullin B C 1995a nif-gene organization and nucleotide sequence of nif K and nif E from Frankia FaCl strain. 10th Int. Conf. on Frankia and Actinorhizal Plants, Davis, CA, August 6-11 (Abstract). Dept. of Environmental Horticulture, UC Davis, Davis, CA, USA.
5. An C S, Oh B S, Twigg P G and Mullin B C 1995b Nucleotide sequence of nif V from Frankia FaCl strain. 10th Int. Conf. on Frankia and Actinorhizal Plants, Davis, CA, August 6-11. (Abstract). Dept. of Environmental Horticulture, UC Davis,Davis, CA, USA.