Telescopi de Galileu (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Telescopi de Galileu" in Catalan language version.

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1intellectualmathematics.com

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google.cat

books.google.cat

Goodwin, Harvey. Deighton, Bell and Co.. An Elementary Course of Mathematics, etc. (Appendix to the first edition.) (en anglès). 5a ed.. An Elementary Course of Mathematics, etc. (Appendix to the first edition.), 1857, p. 532.

imss.fi.it

brunelleschi.imss.fi.it

«Galileo's telescope - The instrument», 2008.
«Galileo's telescope - The instrument», 2008.

intellectualmathematics.com

«Phases of Venus» (en anglès americà), 02-06-2019.