[1]
Fischer-Jørgensen, E. and Jørgensen, H.P. 1970. Close and Loose Contact ("Anschluss") with Special Reference to North German. Annual Report of the Institute of Phonetics University of Copenhagen. 4, (Mar. 1970), 43–80. DOI:https://doi.org/10.7146/aripuc.v4i.130779.