Giulianella Coletti Luca Paulon Romano Scozzafava Barbara Vantaggi Measuring the Quality of Health-Care Services: A Likelihood-Based Fuzzy Modeling Approach. 853-864 2007 conf/ecsqaru/2007 ECSQARU http://dx.doi.org/10.1007/978-3-540-75256-1_74 db/conf/ecsqaru/ecsqaru2007.html#ColettiPSV07