_:b15839 . . . _:b15837 . _:b15839 . _:b15838 . _:b15838 . "ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3"@en . _:b15839 . _:b15837 . _:b15838 . _:b15837 . _:b15839 . _:b15837 . _:b15838 . "CalciumTotalElements"@en .