Last update: Sun Mar 31 02:55:59 MDT 2019
@Article{Heyl:1928:WE, author = "Paul R. Heyl", title = "Weighing the {Earth}", journal = j-SCI-AMER, volume = "138", number = "3", pages = "205--207", month = mar, year = "1928", CODEN = "SCAMAC", DOI = "https://doi.org/10.1038/scientificamerican0328-205", ISSN = "0036-8733 (print), 1946-7087 (electronic)", ISSN-L = "0036-8733", bibdate = "Sat May 18 16:15:53 MDT 2013", bibsource = "http://www.math.utah.edu/pub/tex/bib/sciam1920.bib", URL = "http://www.nature.com/scientificamerican/journal/v138/n3/pdf/scientificamerican0328-205.pdf", acknowledgement = ack-nhfb, fjournal = "Scientific American", journal-URL = "http://www.nature.com/scientificamerican", }