Galileo Galilei: The Invention of the Telescope and Modern Astronomy
Galileo and the telescope – Explaining Science
Which of the following is not correct about Galilean telescope?
Galileo's objective lens - Wikipedia
Galileo Telescopes serious errors in the optics, the telescopes dimensions, and what one really see's looking through his telescopes found in the literature.
Galileo and the telescope – Explaining Science
SGM - Galileo Lens d=70mm lightspares Shop
optics - How does a Galilean telescope form an enlarged image even though it has a diverging lens? - Physics Stack Exchange