Karin Knorr-Cetina (also Karin Knorr Cetina) (born 19 July 1944 in Graz, Austria) is an Austrian sociologist well known for her work on epistemology and social constructionism, summarized in the books The Manufacture of Knowledge: An Essay on the Constructivist and Contextual Nature of Science (1981) and Epistemic Cultures: How the Sciences Make Knowledge (1999).
(from Wikipedia)