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The procurement, manufacturing, distribution, and recycling processes of circular economy have changed in the last few years. The increased complexity of these processes led to the application of new models, methods, tools and technologies. Multi-and omni-channel purchasing, and distribution solutions opens new challenges for researchers to find new models and algorithms to support the optimal design and operation of these processes. Within the frame of this article the authors describe the mathematical model of a multi-channel supply chain solution in cyber-physical environment, where the processes of purchasing regarding suppliers and customers are integrated in a supply chain cloud. Numerical analysis shows the validation of the described model.
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Bányai et al. (2020) studied this question.
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