# Bidirectional labeling in column-generation algorithms for pickup-and-delivery problems

> Research article (European Journal of Operational Research, 2017) · cited 45× · AI/ML

**Wikidata**: [openalex:W2732379263](https://www.wikidata.org/wiki/openalex:W2732379263)  
**Source**: https://4ort.xyz/entity/bidirectional-labeling-in-column-generation-algorithms-for-pickup-and-delivery-problems