Svejvig, Per, Signe Hedeboe Frederiksen, and Anna Gerstrøm Rode. Project Half Double: Addendum: Current Results for Phase 1, January 2017. Rapporter. Aarhus, DK: Aarhus Universitet, 2018. Accessed November 16, 2025. https://openbooks.kb.dk/au/catalog/book/279.