Bernard De Baets Hans De Meyer Susana Díaz On an idempotent transformation of aggregation functions and its application on absolutely continuous Archimedean copulas. 733-751 2009 160 Fuzzy Sets and Systems 6 http://dx.doi.org/10.1016/j.fss.2008.04.001 db/journals/fss/fss160.html#BaetsMD09