TY - RPRT TI - Observed variations in the strontium concentration of sea water AU - E.E. Angino AU - G.K. Billings AU - N. Andersen PY - 1966 DO - 10.1016/0009-2541(66)90013-1 UR - https://pubs.usgs.gov/publication/70010650 ID - 70010650 ER -