Alessandra Mileo Torsten Schaub Davide Merico Roberto Bisiani Knowledge-based multi-criteria optimization to support indoor positioning. 345-370 2011 62 Ann. Math. Artif. Intell. 3-4 http://dx.doi.org/10.1007/s10472-011-9241-2 db/journals/amai/amai62.html#MileoSMB11