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Kaneda, M., Kitagawa, K., Nagai, H., Ichinohe, F., (1992). Research Bulletin of the Plant Protection Service, Japan(No. 28), 7-11. English language
Lourenção, A. L., Nagai, H., (1994). Bragantia 53(1), 53-59. Portuguese language
Costa, A. S., Nagai, H., Costa, C. L., Kitajima, E. W., Matuo, A., (1975). Summa Phytopathologica 1(1), 5-18. Portuguese language
Nagai, H., Smith, P. G., (1968). Plant Disease Reporter 52(12), 928-930. English language