1. [2]IBM Application Program System/360 Wholesale IMPACT Program Library(360A - DW - 05X Version 2 and 360V - DW - 06X) Program Description Manual, 1968 , pp.4 -15 .
2. [3]International Business Machines Corporation , Wholesale Impact Computer Program Library User's Manual . White Plains, NY: International Business Machines Corporation, 1969 , pp.4.1 -4.35 .
3. Exponential Smoothing with an Adaptive Response Rate