@article {25351,
	title = {Competitiveness of Rhizobium sp (Leucaena leucocephala) (Lam.) Dewit strains and their genetically marked derivatives},
	journal = {Letters in Applied Microbiology},
	volume = {22},
	year = {1996},
	pages = {443-447},
	author = {D. M. Swelim and L. D. Kukendall and F. M. Hashem and S. M. Abdel-Wahab}
}
