"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." . . . "CEC_ph0-ag-thioura" . . "CEC unbuffered at pH of the soil, in 0.01 M Ag-thioura exchange solution" . . . "CEC_ph0-ag-thioura"@en .