TY - RPRT TI - Chlorine-36 in groundwater of the United States: Empirical data AU - S.N. Davis AU - S. Moysey AU - L.D. Cecil AU - M. Zreda PY - 2003 DO - 10.1007/s10040-002-0232-6 UR - https://pubs.usgs.gov/publication/70025633 ID - 70025633 ER -