M. Cristina Scattolin, M. Fabiana Bugliani, Leticia I. Cortés, Lucas Pereyra Domingorena, Marilin Calo: A 3000-YEAR-OLD COPPER MASK: ARCHAEOMETALURGICAL ANALYSIS AND REGIONAL COMPARISONS. Boletín del Museo Chileno de Arte Precolombino, 00/2010, nro 1, s. 25–46. doi:10.4067/S0718-68942010000100003. ISSN 0718-6894. Artikkelin verkkoversio.
doaks.org
Raymond, J. Scott & Burger, Richard L.: Archaeology of Formative Ecuador, s. 13. Dumbarton Oaks: Trustees for Harvard University, Washington, D.C., 2003. Teoksen verkkoversio (pdf) (viitattu 07.02.2018 (englanniksi)). (Arkistoitu – Internet Archive)
doi.org
dx.doi.org
A. Eichler, G. Gramlich, T. Kellerhals, L. Tobler, Th. Rehren, M. Schwikowski: Ice-core evidence of earliest extensive copper metallurgy in the Andes 2700 years ago. Scientific Reports, 31.1.2017, nro 7. PubMed:28139760. doi:10.1038/srep41855. ISSN 2045-2322. Artikkelin verkkoversio.
Mark Aldenderfer, Nathan M. Craig, Robert J. Speakman, Rachel Popelka-Filcoff: Four-thousand-year-old gold artifacts from the Lake Titicaca basin, southern Peru. Proceedings of the National Academy of Sciences of the United States of America, 1.4.2008, nro 13, s. 5002–5005. PubMed:18378903. doi:10.1073/pnas.0710937105. ISSN 0027-8424. Artikkelin verkkoversio.
M. Cristina Scattolin, M. Fabiana Bugliani, Leticia I. Cortés, Lucas Pereyra Domingorena, Marilin Calo: A 3000-YEAR-OLD COPPER MASK: ARCHAEOMETALURGICAL ANALYSIS AND REGIONAL COMPARISONS. Boletín del Museo Chileno de Arte Precolombino, 00/2010, nro 1, s. 25–46. doi:10.4067/S0718-68942010000100003. ISSN 0718-6894. Artikkelin verkkoversio.
A. Eichler, G. Gramlich, T. Kellerhals, L. Tobler, Th. Rehren, M. Schwikowski: Ice-core evidence of earliest extensive copper metallurgy in the Andes 2700 years ago. Scientific Reports, 31.1.2017, nro 7. PubMed:28139760. doi:10.1038/srep41855. ISSN 2045-2322. Artikkelin verkkoversio.
Mark Aldenderfer, Nathan M. Craig, Robert J. Speakman, Rachel Popelka-Filcoff: Four-thousand-year-old gold artifacts from the Lake Titicaca basin, southern Peru. Proceedings of the National Academy of Sciences of the United States of America, 1.4.2008, nro 13, s. 5002–5005. PubMed:18378903. doi:10.1073/pnas.0710937105. ISSN 0027-8424. Artikkelin verkkoversio.
ncbi.nlm.nih.gov
A. Eichler, G. Gramlich, T. Kellerhals, L. Tobler, Th. Rehren, M. Schwikowski: Ice-core evidence of earliest extensive copper metallurgy in the Andes 2700 years ago. Scientific Reports, 31.1.2017, nro 7. PubMed:28139760. doi:10.1038/srep41855. ISSN 2045-2322. Artikkelin verkkoversio.
Mark Aldenderfer, Nathan M. Craig, Robert J. Speakman, Rachel Popelka-Filcoff: Four-thousand-year-old gold artifacts from the Lake Titicaca basin, southern Peru. Proceedings of the National Academy of Sciences of the United States of America, 1.4.2008, nro 13, s. 5002–5005. PubMed:18378903. doi:10.1073/pnas.0710937105. ISSN 0027-8424. Artikkelin verkkoversio.
Raymond, J. Scott & Burger, Richard L.: Archaeology of Formative Ecuador, s. 13. Dumbarton Oaks: Trustees for Harvard University, Washington, D.C., 2003. Teoksen verkkoversio (pdf) (viitattu 07.02.2018 (englanniksi)). (Arkistoitu – Internet Archive)
A. Eichler, G. Gramlich, T. Kellerhals, L. Tobler, Th. Rehren, M. Schwikowski: Ice-core evidence of earliest extensive copper metallurgy in the Andes 2700 years ago. Scientific Reports, 31.1.2017, nro 7. PubMed:28139760. doi:10.1038/srep41855. ISSN 2045-2322. Artikkelin verkkoversio.
Mark Aldenderfer, Nathan M. Craig, Robert J. Speakman, Rachel Popelka-Filcoff: Four-thousand-year-old gold artifacts from the Lake Titicaca basin, southern Peru. Proceedings of the National Academy of Sciences of the United States of America, 1.4.2008, nro 13, s. 5002–5005. PubMed:18378903. doi:10.1073/pnas.0710937105. ISSN 0027-8424. Artikkelin verkkoversio.
M. Cristina Scattolin, M. Fabiana Bugliani, Leticia I. Cortés, Lucas Pereyra Domingorena, Marilin Calo: A 3000-YEAR-OLD COPPER MASK: ARCHAEOMETALURGICAL ANALYSIS AND REGIONAL COMPARISONS. Boletín del Museo Chileno de Arte Precolombino, 00/2010, nro 1, s. 25–46. doi:10.4067/S0718-68942010000100003. ISSN 0718-6894. Artikkelin verkkoversio.