. _:b10460 _:b10461 . "OxalateExtractableOpticalDensity"@en . "ISRIC Report 2019/01: Tier 1 and Tier 2 data in the context of the federated Global Soil Information System. Appendix 3"@en . _:b10460 . _:b10464 . _:b10462 . _:b10464 . _:b10460 . _:b10465 . _:b10457 _:b10462 . _:b10457 . _:b10465 . _:b10464 . . _:b10464 . _:b10462 . _:b10461 _:b10457 . _:b10465 . _:b10460 . _:b10465 .