author = { Kansallisarkisto Helsinki },

title = { HERO Heraldikens ontologi },

publisher = {Riksarkivet},

keywords = { Wörterbuch , Website , Schwedisch , Wappen },

year = {[ca. 2021]},

address = { Helsingfors },

url = { http://slubdd.de/katalog?TN_libero_mab2 }