Dulat-Lewicz, Katarzyna. “How Does a Language Die? Remarks on Socio-Political, Economic and Cultural Factors of the Death of a Language, Exemplified by the German-Silesian Variety from the Former Kreis Waldenburg (present-Day Powiat wałbrzyski)”. Convivium. Germanistisches Jahrbuch Polen, Dec. 2018, pp. 149-65, doi:10.18778/2196-8403.2018.08.