1. Bousquette, Joshua. 2020. From bidialectal to bilingual: Evidence for multistage language shift in the 1946–1949 Wisconsin German recordings of Lester W. J. “Smoky” Seifert. American Speech 95(4). 485–523.
2. Brown, Joshua R (ed.). in press. The verticalization model of language shift: The Great Change in American communities. Oxford: Oxford University Press.
3. Frey, Benjamin. 2013. Toward a general theory of language shift: A case study in Wisconsin German and North Carolina Cherokee. Madison, WI: University of Wisconsin dissertation.
4. Giles, Howard, Richard Y. Bourhis & Donald M. Taylor. 1977. Towards a theory of language in ethnic group relations. In Howard Giles (ed.), Language, ethnicity and intergroup relations, 307–348. London: Academic Press.
5. Haugen, Einar. 1953. The Norwegian language in America: A study of bilingual behavior, vol. 2. Philadelphia, PA: University of Pennsylvania Press.