Ravindran, Arunachalam; Thomas W. Hill, Jr. - In: Management Science 19 (1973) 5, pp. 581-582
The linear programming approach to the absolute value problem is to transform the unrestricted variable by the difference of two nonnegative variables. This transformation creates an unbounded feasible region which may lead to erroneous solution. To avoid this, Kaplan [Kaplan, Seymour. 1971....