Measles outbreak in Styria, Austria, March-May 2009 Kasper, S and Holzmann, H and Aberle, S W and Wassermann-Neuhold, M and Gschiel, H and Feenstra, O and Allerberger, F and Schmid, D, Eurosurveillance, 14, 19347 (2009), https://doi.org/10.2807/ese.14.40.19347-en