Simpson, A.J.G.; Reinach, F.C.; Arruda, P.; Abreu, F.A.; et al. (13. juli 2000): «The genome sequence of the plant pathogen », (6792), s. 151–159. . . Wells, J.M.; Raju, B.C.; Hung, H.Y.; Weisburg, W.G.; Parl, L.M.; & Beemer, D. (1987): « gen. nov., sp. nov.: Gram-negative, xylem-limited, fastidious plant bacteria related to spp», (2), s. 136–143. .