The focus of Lang’s doctoral research is on the analysis of the relation between art – knowledge – criticism following the second phase of institutional critique. It examines artistic militant practices within the institutionalized field of globalized contemporary art from the 2000s onwards. The core of the study consists of the international exhibition and research project Ex Argentina (2003–2006), initiated and co-curated by the artists and curators Alice Creischer and Andreas Siekmann. One of the central goals of the dissertation project is the art scholarly analysis of a case study that, so far, has been discussed in German-speaking countries only in a fragmentary manner and focusing on their partial realizations in Europe. The contextualization and comparison of selected poetic critical practices should then also serve as a basis for a re-negotiation of critique.