TY - RPRT TI - Triple oxygen isotope compositions of isotopic reference waters: Implications for VSMOW-Scale and VSMOW-SLAP-Scale Δ′¹⁷O calibration AU - Ryoji Tanaka AU - Andreas Pack AU - Tyler B. Coplen PY - 2026 DO - 10.1111/ggr.70058 UR - https://pubs.usgs.gov/publication/70278107 ID - 70278107 ER -