Herman MawengkangMuhammad Romi SyahputraSutarman SutarmanAbdellah Salhi2025-05-212025-05-21https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/34744530A Non-Linear Optimization Model for the Multi-Depot Multi-Supplier Vehicle Routing Problem with Relaxed Time Windowssupplierxml