Identification and analysis of agroproduction zones by overlay-correlation-method: the case of Costa Rica
Red Internacional de Evaluación de Pastos Tropicales. Reunión (2, 1982, Cali, Colombia). Resultados 1979-1982
Identification and analysis of agroproduction zones by the overlay-correlation method: the case of Costa Rica
The relationship of some Elsinoë and Sphaceloma species pathogenic on cassava and other Euphorbiaceae in Central and South America