Credit foto: Wikimedia – Karl Brodowsky (https://commons.wikimedia.org/wiki/File:Old-Tjikko-2011-07-19-001.jpg), ritagliata, ridimensionata, dimensioni: 800×700 px, Attribution 3.0 Unported, (CC BY 3.0) (https://creativecommons.org/licenses/by/3.0/deed.en)