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![Economics of Grids, Clouds, Systems, and Services: 18th International Conference, GECON 2021, Virtual Event, September 2123, 2021, Proceedings [Paperback]](/itemImage/2/6/7/3/2_5281273.jpg "Economics of Grids, Clouds, Systems, and Services: 18th International Conference, GECON 2021, Virtual Event, September 2123, 2021, Proceedings [Paperback]")