Odkazy
https://cs.wikipedia.org/wiki/Anne_McCaffrey
https://cs.wikipedia.org/wiki/Drakeni_z_Pernu
https://hrdinove-budoucnosti.blog.cz/rubrika/drakeni-z-pernu
https://facebook.com/profile.php?id=1628779279
www.pern.info/covers/index.html
en.wikipedia.org/wiki/Dragonriders_of_Pern
* https://www.roedinofpern.co.uk/