Intercalibration of astronomical and radioisotopic time Kuiper, K. ; Deino, A. ; Hilgen, F. ; Krijgsman, W. ; Renne, P. ; Wijbrans, J. Abstract Publication: Geochimica et Cosmochimica Acta Supplement Pub Date: May 2005 Bibcode: 2005GeCAS..69..316K