Πηγές-Μέσα

https://el.wikipedia.org/wiki/%CE%95%CF%85%CF%81%CF%8E%CF%80%CE%B7

https://el.wikipedia.org/wiki/%CE%95%CF%85%CF%81%CF%8E%CF%80%CE%B7_(%CE%BC%CF%85%CE%B8%CE%BF%CE%BB%CE%BF%CE%B3%CE%AF%CE%B1)

http://photodentro.edu.gr/lor/r/8521/3061?locale=el