Hans Lipperhey (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hans Lipperhey" in English language version.

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6books.google.com

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archive.org

Van Helden 1977, p. 40; Van Helden 1985, p. 65, Drake 1978, p. 138 Van Helden, Albert (1977). The Invention of the Telescope. Philadelphia, PA: The American Philosophical Society. ISBN 0-87169-674-6. Van Helden, Albert (1985). Measuring the Universe. Chicago, IL: The University of Chicago Press. ISBN 0-226-84881-7. Drake, Stillman (1978). Galileo At Work. Mineola, NY: Dover. ISBN 0-486-49542-6.

astro.it

bo.astro.it

"Osservatorio Astronomico di Bologna - TELESCOPES". The request however was turned down, also because other spectacle-makers had made similar claims at the same time.

books.google.com

Henry C. King (January 2003). The History of the Telescope. Courier Corporation. p. 30. ISBN 9780486432656.
Brian Clegg (26 December 2007). Light Years: An Exploration of Mankind's Enduring Fascination with Light. Palgrave Macmillan. ISBN 9780230553866.
Fred Watson (2007). Stargazer. Allen & Unwin. p. 55. ISBN 9781741763928.
Henry C. King (January 2003). The History of the Telescope. Courier Corporation. p. 27. ISBN 9780486432656. (spectacles) invention, an important step in the history of the telescope
Van Helden 1977, p. 40; Van Helden 1985, p. 65, Drake 1978, p. 138 Van Helden, Albert (1977). The Invention of the Telescope. Philadelphia, PA: The American Philosophical Society. ISBN 0-87169-674-6. Van Helden, Albert (1985). Measuring the Universe. Chicago, IL: The University of Chicago Press. ISBN 0-226-84881-7. Drake, Stillman (1978). Galileo At Work. Mineola, NY: Dover. ISBN 0-486-49542-6.
Clifford D. Conner (8 November 2005). A people's history of science: miners, midwives, and "low mechanicks. PublicAffairs. ISBN 9781560257486.

rice.edu

galileo.rice.edu

Al Van Helden. "The Galileo Project > Science > The Telescope". galileo.rice.edu. The Hague discussed the patent applications first of Hans Lipperhey of Middelburg, and then of Jacob Metius of Alkmaar... another citizen of Middelburg, Zacharias Janssen had a telescope at about the same time but was at the Frankfurt Fair where he tried to sell it.