# The two-echelon multi-products location-routing problem with pickup and delivery: formulation and heuristic approaches

> Research article (International Journal of Production Research, 2015) · cited 53× · AI/ML

**Wikidata**: [openalex:W1151468021](https://www.wikidata.org/wiki/openalex:W1151468021)  
**Source**: https://4ort.xyz/entity/the-two-echelon-multi-products-location-routing-problem-with-pickup-and-delivery-formulation-and-heuristic-approaches