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Hello André,

thank you very much. The model is working fine now


Kind regards,
hh-student

Hello André, thank's really a lot for your tips. The name of the equation "E" (Anzahl Einrichtungen pro Knoten = 1) was wrong. It should be (Anzahl Einrichtungen pro Knoten <= 1), so that there is either 1 or 0 facilities opened at that node. Sorry for the mistake. Normally the model shoul...

I am a Student and i have a problem with a model. Please help me. The model is from this paper: https://link.springer.com/content/pdf/10.1007/s00291-011-0248-1.pdf Pre-positioning planning for emergency response with service quality constraints The model is an optimization model in which the objecti...