MOREIRA, G. M.; BARRELLA, T. P.; MARTINS NETO, F. L.; MARTINEZ, H. E. P.; SANTOS, R. H. S. Intercropping of organic coffee with jack beans or hyacinth beans for different periods. Coffee Science - ISSN 1984-3909, v. 9, n. 4, p. 456 - 464, 8 Oct. 2014.