* {{chú citethích journaltạp chí|last1=Keisch|doi=10.1126/science.155.3767.1238|first1=B.|last2=Feller|first2=R. L.|last3=Levine|first3=A. S.|last4=Edwards|first4=R. R.|title=Dating and Authenticating Works of Art by Measurement of Natural Alpha Emitters|journal=Science|volume=155|issue=3767|pages=1238–1242|year=1967|pmid=17847535|bibcode = 1967Sci...155.1238K }}
*{{chú citethích journaltạp chí|doi=10.1126/science.160.3826.413|last=Keisch |first=B|title=Dating Works of Art Through their Natural Radioactivity: Improvements and Applications|journal=Science|volume= 160|issue=3826 |pages=413–415|year=1968|pmid=17740234|bibcode = 1968Sci...160..413K }}
*{{chú citethích journaltạp chí| doi=10.1111/j.2151-6952.1968.tb00884.x| last=Keisch|first= B|title=Discriminating Radioactivity Measurements of Lead: New Tool for Authentication|journal=Curator|volume=11|issue=1|pages=41–52|year= 1968}}
*{{chú citethích booksách|editor1-first=Jose S.|editor1-last= Casas |editor2-first=Jose |editor2-last=Sordo|url=http://www.google.com/books?id=D9nYWCv_FE4C&printsec=frontcover|title= Lead Chemistry, Analytical Aspects. Environmental Impacts and Health Effects|year= 2006|publisher= Elsevier| isbn= 0-444-52945-4}}
