The study of dialect convergence and divergence: conceptual and methodological considerationsThe role of interpersonal accommodation in a theory of language changeCité Duits: A polyethnic miners’ varietyCité Duits – een multi-etnische mijnwerkerstaal in Eisden-Tuinwijk (Belgisch-Limburg)Bare nouns in prepositional phrases in Cité-Duits, a moribund miners’ multi-ethnolect (and other varieties of Dutch and German