Literature
  • Abadjiev 1992
  • Butterflies of Bulgaria. Part 1: Papilionidae and Pieridae. Veren Scientific Monographs. Veren Publishers, Sofia.
  • Abadjiev 1993
  • Butterflies of Bulgaria. Part 2: Nymphalidae: Libytheinae and Satyrinae. Veren Scientific Monographs. Veren Publishers, Sofia.
  • Abadjiev 1995
  • Butterflies of Bulgaria. Part 3: Nymphalidae: Apaturinae and Nymphalinae. Abadjiev Eventus, Sofia.
  • Aistleitner 1996
  • Die Tagfalter des Fürstenturms Liechtenstein (Lepidoptera: Papilionoidea und Hesperioidea). Naturkundliche Forschung im Fürstentum Liechtenstein, Band 16. Regierung des Fürstenturms Liechtenstein, Vaduz, Liechtenstein.
  • Asher 2001
  • The Millennium Atlas of Butterflies in Britain and Ireland. Oxford University Press, Oxford.