@misc{indiciae263e1c88f41b, title = {Observed variations in the strontium concentration of sea water}, author = {E.E. Angino and G.K. Billings and N. Andersen}, year = {1966}, doi = {10.1016/0009-2541(66)90013-1}, url = {https://pubs.usgs.gov/publication/70010650}, note = {Source identifier: 70010650} }