Calculated annual mean of δ¹⁸O of firn core DML17C98_33 (B33) - Graf, Wolfgang; Oerter, Hans; Reinwarth, Oskar; Stichler, Willibald; Wilhelms, Frank; Miller, Heinz; Mulvaney, Robert (In supplement to: Graf, W et al. (2002): Stable-isotope records from Dronning Maud Land, Antarctica. Annals of Glaciology, 35, 195-201, https://doi.org/10.3189/172756402781816492, 2002)