| Article ID: | iaor2002947 | 
| Country: | Spain | 
| Volume: | 7 | 
| Issue: | 1 | 
| Start Page Number: | 155 | 
| End Page Number: | 162 | 
| Publication Date: | Jan 1999 | 
| Journal: | TOP | 
| Authors: | Escudero Laureano F., Ortuo M. Teresa, Martnez M. Carmen | 
| Keywords: | knapsack problem | 
In this note, we present a scheme for tightening 0–1 knapsack constraints based on other knapsack constraints surrogating.