TY - JOUR A1 - Aoyama, M. T1 - Global certified-reference-material- or reference-material-scaled nutrient gridded dataset GND13 JO - Earth Syst. Sci. Data J1 - ESSD VL - 12 IS - 1 SP - 487 EP - 499 Y1 - 2020/02/28 PB - Copernicus Publications SN - 1866-3516 UR - https://essd.copernicus.org/articles/12/487/2020/ L1 - https://essd.copernicus.org/articles/12/487/2020/essd-12-487-2020.pdf DO - 10.5194/essd-12-487-2020 ER -