Damon PE, Donahue DJ, Gore BH, Hatheway AL, Jull AJT, Linick TW, Sercel PJ, Toolin LJ, Bronk CR, Hall ET, Hedges REM, Housley R, et alFebruary 1989Journal article Journal:NatureVolume:337Issue:6208, Springer Science and Business Media LLC, pp.611 - 615No abstract available DOI10.1038/337611a0