García Moreno, Rosario and Diaz Alvarez, Maria Cruz and Saa Requejo, Antonio and Tarquis Alfonso, Ana Maria (2008). Multifractal Analysis of Soil Surface Roughness. "Vadose Zone Journal", v. 7 (n. 2); pp. 512-520. ISSN 1539-1663. https://doi.org/10.2136/vzj2007.0016.