Svejvig, Per, Michael Ehlers, Karoline Thorp Adland, Sara Grex, Signe Hedeboe Frederiksen, Martin Malthe Borch, Nicolai Elborough Boston, et al. 2018. Project Half Double: Preliminary Results for Phase 1, June 2016. Rapporter. Aarhus, DK: Aarhus Universitet. https://doi.org/10.7146/aul.278.193.