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"description": "Documentation: Lucchesi, R., 2018: File Specification for GEOS FP. GMAO Office Note No. 4 (Version 1.2), 61 pp, available from [https://gmao.gsfc.nasa.gov/pubs/docs/Lucchesi1203.pdf](https://gmao.gsfc.nasa.gov/pubs/docs/Lucchesi1203.pdf)",
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