20210207002200.0 2624-9634 clockss CLOCKSS Archive 2019/2024 2024-03-25 1 to 6 1 to 6 Preserved Frontiers Frontiers in Sustainable Cities 2624-9634 2624-9634 2624-9634 Frontiers in sustainable cities. Frontiers in sustainable cities Frontiers in sustainable cities 2624-9634 https://www.frontiersin.org/journals/sustainable-cities#articles 2624-9634 Frontiers in sustainable cities. Switzerland