B. VOLSI, G. H. L. D. CASTRO, G. V. D. COSTA, M. F. D. P. SEVERINO, e T. S. TELLES, “SPATIAL DISTRIBUTION, EVOLUTION AND STRUCTURE OF MAIZE AND SOYBEAN PRODUCTION SYSTEMS IN STATE OF PARANÁ”, Int. Jour. M&S, vol. 19, p. 17, out. 2020.