1. Gapped BLAST and PSI-BLAST: a new generation of protein database search programs
2. Blood, H. L., B. L. Richards, and F. B. Wann. 1933. Studies of psyllid yellows of tomato. Phytopathology23:930.
3. Bové, J. M. 2006. Huanglongbing: a destructive, newly-emerging, century-old disease of citrus. J. Plant Pathol.88:7-37.
4. Capoor, S. P., D. G. Rao, and S. M. Viswanath. 1974. Greening disease of citrus in the Deccan trap country and its relationship with the vector Diaphorina citri Kuwayama, p. 43-49. In L. G. Weathers and M. Cohen (ed.), Proceedings of the 6th Conference of the International Organization of Citrus Virologists. University of California, Davis.
5. Toxicity of Paratrioza cockerelli (Sulc) to certain solanaceous plants. 1950