@misc{misca67d68fb,
title   = {Soybean yield under the effect of natural occurrence of Septoria glycines Hemmi and Cercospora kikuchii (Matsu. & Tomoyasu) Gardner diseases with and without chemical control},
author = {Martins, M. C. and Câmara, Gil Miguel de Sousa and Bernardes, Marcos Silveira and Amorim, Lílian},
year = {2004},
booktitle   = {World Soyabean Research Conference}
}