. . . "Leenaars J.G.B., A.J.M. van Oostrum and M. Ruiperez Gonzalez, 2014. Africa Soil Profiles Database, Version 1.2. A compilation of georeferenced and standardised legacy soil profile data for Sub-Saharan Africa (with dataset). ISRIC Report 2014/01. Africa Soil Information Service (AfSIS) project and ISRIC - World Soil Information, Wageningen, the Netherlands. See Annex 4." . . "CaCO3_ca09" . "CaCO3_ca09"@en . . "Carbonates: H3PO4 treatment at 80 deg. C and CO2 measurement like TOC (OC13), transformation into CaCO3 (Schlichting et al. 1995)" .