Margheri, Andrea and Masi, Massimiliano and Pugliese, Rosario and Tiezzi, Francesco On a Formal and User-friendly Linguistic Approach to Access Control of Electronic Health Data. In: HEALTHINF 2013 - Proceeding of 6th International Conference on Health Informatics (HEALTHINF). SciTePress, pp. 263-268. ISBN 978-989-8565-37-2 (2013)