● Akhurst RJ,Boemare NE (1988). A numerical taxonomic study of the genus Xenorhabdus (Enterobacteriaceae) and proposed elevation of the subspecies of X. nematophilus to species. J. Gen. Microbiol.134, 1835-45. ● Akhurst RJ (1983). Taxonomic study of Xenorhabdus, a genus of bacteria symbiotically associated with insect pathogenic nematodes. Int. J. Syst. Bacteriol.33, 38-48.