O. B. Weber, D. Correia, M. W. Rocha, G. C. Alvez, E. M. de Oliveira, and E. G. Sá, “Response of pineapple plantlets to inoculation with diazotrophic bacteria in greenhouse”, PAB, vol. 38, no. 12, pp. 1419–1426, Dec. 2003, doi: 10.1590/S1678-3921.pab2003.v38.6719.