Roald H. Fryxell (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Roald H. Fryxell" in German language version.

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167th place
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ahcwyo.org

doi.org

  • Virginia Steen-McIntyre, Roald Fryxell, Harold E. Malde: Geologic evidence for age of deposits at Hueyatlaco archeological site, Vasequillo, Mexico. In: Quaternary Research. Band 16, Nr. 1. Elsevier, 1981, S. 1–17, doi:10.1016/0033-5894(81)90124-1 (englisch).

geosociety.org

rock.geosociety.org

usgs.gov

planetarynames.wr.usgs.gov