József Mezei, Kaj-Mikael Björk. An Economic Production Quantity Problem with Fuzzy Backorder and Fuzzy Demand. In Álvaro Rocha, Ana Maria Ramalho Correia, Tom Wilson, Karl A. Stroetmann, editors, Advances in Information Systems and Technologies [WorldCIST'13, Olhão, Algarve, Portugal, March 27-30, 2013]. Volume 206 of Advances in Intelligent Systems and Computing, pages 557-566, Springer, 2013. [doi]