Investigation of surface modification of casein films by rennin enzyme action using micro-beam grazing incidence small angle X-ray scatteringRonald Gebhardt, Manfred Burghammer, Christian Riekel, Ulrich Kulozik and Peter Müller-BuschbaumDairy Sci. Technol., 90 1 (2010) 75-86DOI: https://doi.org/10.1051/dst/2009047