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2. WMO-No. 544 (2010) Manual on the global observing system (WMO, 2010, 2011a)
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4. IOC (1993) Manual of quality control procedures for validation of oceanographic data”, IOC Manuals and guides
5. ESEAS (2002) Quality control of sea level observations—version 1.0, European Sea level service— research infrastructure, p. 22