I. C. M. Cardoso, O. Klauberg Filho, J. R. Mariotto, D. J. Miquelluti, D. Vicente, and A. N. Neves, “Occurrence of endophytic bacteria of the genus Azospirillum in lowland rice plants collected in Santa Catarina state”, Rev. Ciênc. Agrovet., vol. 9, no. 2, pp. 178–186, Oct. 2010.