# A mixed integer linear programming model for the vehicle routing problem with simultaneous delivery and pickup by heterogeneous vehicles, and constrained by time windows

> Research article (Sadhana, 2019) · cited 20× · AI/ML

**Wikidata**: [openalex:W2912467262](https://www.wikidata.org/wiki/openalex:W2912467262)  
**Source**: https://4ort.xyz/entity/a-mixed-integer-linear-programming-model-for-the-vehicle-routing-problem-with-simultaneous-delivery-and-pickup-by-hetero