Ludwik Fleck and the History of Science Today' - http://www.coc.fiocruz.br/hscience/vol1n1/lowy.html Abstract of a 1994 paper by Ilana Lowy, from the journal History, Science, Health - Maguinhos.
Ludwik Fleck: An Answer to the Crisis of Modern Medicine in Interwar Germany? - http://www3.oup.co.uk/sochis/hdb/Volume_15/Issue_02/150187.sgm.abs.html Abstract of a 2002 paper by Christian Bonah, with full text available as a PDF file. Considers Fleck's 1935 work Genesis and Development of a Scientific Fact in the bioethical context of the time.
Polish Philosophy Pages: Ludwik Fleck - http://www.fmag.unict.it/~polphil/PolPhil/Fleck/Fleck.html Brief biography, bibliography, and several essays on key terms in Fleck's thought.