VICENTE-CHANDLER, J.; SILVA, S.; FIGARELLA, J. Some Limitations in the Use of the Air Picnometer for Soil-Porosity, Soil-Moisture, and Particle-Density Determinations. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 40, n. 3, p. 179–188, 1956. DOI: 10.46429/jaupr.v40i3.13799. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/13799. Acesso em: 4 dec. 2022.