TY - JOUR T1 - Radiocarbon dating of alkenones from marine sediments-III. Influence of solvent extractions procedures on 14C measurements of foraminifera JF - Radiocarbon Y1 - 2005 A1 - Ohkouchi, N. A1 - Eglinton, T. I. A1 - Hughen, K. A. A1 - Roosen, E. A1 - Keigwin, L. VL - 47 N1 - id: 554 ER -