Sonderen-Huisman, W. van

inventory repair shop repair van der laan return number procedure inventory position function disposal value production demand model position economic cost function backorder inventory control optimisation system respect al ./int j order distribution muckstadt result approximation isaac product control al ./lnt j iterative method increase output paper leadtime repair times time t analysis enumeration policy scheme 339-350 formula yield review iterative procedure 12.2870 product recovery management 12.6465 approximative process remanufacturing 0.95 inventory levels state space 0.80 return rate 1 0 point time unit return flow objective function r time units 8.5735 level 0.50 al /int j iterative scheme non-disposal case appendix 0.70 moment performance 0.6 0.4 0.5 0.3