Dobrila Petrovic Ying Xie Keith Burnham Fuzzy decision support system for demand forecasting with a learning mechanism. 1713-1725 2006 157 Fuzzy Sets and Systems 12 http://dx.doi.org/10.1016/j.fss.2006.03.011 db/journals/fss/fss157.html#PetrovicXB06