Sezione 6. Riferimenti e approfondimenti

Christian Obrecht, ΕϒΚΛΕΙΔΗΣ

<http://www.eukleides.org/>
Christian Obrecht, Eukleides: A geometry drawing language

<https://www.tug.org/TUGboat/Articles/tb22-4/tb72obre.pdf>
TUG, Welcome to the PSTricks web site

<http://www.tug.org/PSTricks/>
X Consortium Inc., X Logical Font Description Conventions

<http://www.xfree86.org/current/xlfd.pdf>
Bill Casselman
- Pictures and Proofs
  
  <http://www.ams.org/notices/200010/fea-casselman.pdf>
- Mathematical Illustrations
  
  <http://www.math.ubc.ca/~cass/graphics/manual/>
Alexander Bogomolny, Pythagorean Theorem and its many proofs

<http://www.cut-the-knot.org/pythagoras/index.shtml>

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