Richard L. Burger, Lucy C. Salazar, Jason Nesbitt, Eden Washburn, Lars Fehren-Schmitz: New AMS dates for Machu Picchu: results and implications. Antiquity, undefined/ed, s. 1–15. doi:10.15184/aqy.2021.99. ISSN 0003-598X. Artikkelin verkkoversio. en
Richard L. Burger, Lucy C. Salazar, Jason Nesbitt, Eden Washburn, Lars Fehren-Schmitz: New AMS dates for Machu Picchu: results and implications. Antiquity, undefined/ed, s. 1–15. doi:10.15184/aqy.2021.99. ISSN 0003-598X. Artikkelin verkkoversio. en
Richard L. Burger, Lucy C. Salazar, Jason Nesbitt, Eden Washburn, Lars Fehren-Schmitz: New AMS dates for Machu Picchu: results and implications. Antiquity, undefined/ed, s. 1–15. doi:10.15184/aqy.2021.99. ISSN 0003-598X. Artikkelin verkkoversio. en