Terry W Swanson; Marc L Caffee (January 2003), "Determination of 36Cl Production Rates Derived from the Well-Dated Deglaciation Surfaces of Whidbey and Fidalgo Islands, Washington", Quaternary Research, 59 (1): 132–134, doi:10.1006/qres.2001.2278, S2CID131251443
Terry W Swanson; Marc L Caffee (January 2003), "Determination of 36Cl Production Rates Derived from the Well-Dated Deglaciation Surfaces of Whidbey and Fidalgo Islands, Washington", Quaternary Research, 59 (1): 132–134, doi:10.1006/qres.2001.2278, S2CID131251443