Amezketa, E., R. Aragües, R. Carranza, and B. Urgel. “Macro- and Micro-Aggregate Stability of Soils Determined by a Combination of Wet-Sieving and Laser-Ray Diffraction”. Spanish Journal of Agricultural Research, Vol. 1, no. 4, Dec. 2003, pp. 83-94, doi:10.5424/sjar/2003014-50.