Vereecken, H., Weynants, M., Javaux, M., Pachepsky, Y., Schaap, M. G., & van Genuchten, M. Th. (2010). Using Pedotransfer Functions to Estimate the van Genuchten-Mualem Soil Hydraulic Properties: A Review. Vadose Zone Journal, 9, 795-820. https://doi.org/10.2136/vzj2010.0045 (Original work published 2010)