ESCHENWALD, A.; HALL, C. W. Air-Flotation, Pneumatic Conveying Velocities, and Airflow Relationships for Coffee Fruits and Coffee Beans. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 45, n. 4, p. 319–332, 1961. DOI: 10.46429/jaupr.v45i4.13767. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/13767. Acesso em: 26 sep. 2022.