edited by Spyros Makridakis and Steven C. Wheelwright. edited by Carol E. Widnels and Steven E. Lindow. edited by Jack H. Sandweiss and Steven L. Wolf. edited by John S. Papadakis and Joseph B. Keller. edited by E. Kaldis and H. J. Scheel. edited by Spyros Tzafestas and Pierre Borne. edited by William D. Terry and Steven A. Rosenberg.