Geenivaraoppi: Product development. PedaNet. (google translate)
Geenivaraoppi: Tourism. PedaNet. (google translate)
GeenivaraOppi: Places with signature plants. PedaNet. (google translate)
SLU: Green Cultural Heritage mark in Sweden (google translate)
GeenivaraOppi: Natural Resoruces Institute Finland's genetic plant garden in Jokioinen. PedaNet. (google translate)
Michelson, Annika (2016): Talkkuna - traditions with roasted grain (ppt). Häme University of Applied Sciences. Recording 24 min.
Vahtila, Outi: Making talkkuna at Virri farm in Finland 20.4.2017 7 min.
Green Cultural Heritage is a registered trademark in Sweden for valuable old heriloom plants.