Frederick II of Hohenstaufen, Bergmann`s rule and Aristotelian typology
How to Cite
Niemelä, P., Salo, J., & Laaksonen, H. (1991). Frederick II of Hohenstaufen, Bergmann`s rule and Aristotelian typology. Ornis Fennica, 68(1), 33–35. Retrieved from https://ornisfennica.journal.fi/article/view/133313