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3. Boyle, P., and Halfacree, K. (1998). Studying counterurbanisation and the rural population turnaround. Migration into Rural Areas: Theories and Issues, Wiley.
4. Boyle, P., and Halfacree, K. (1998). Contrasting the counterurbanisation experience in European nations. Migration into Rural Areas: Theories and Issues, Wiley.
5. Maginn, P.J., and Hubbard, P. (2024, July 08). Coronavirus Could Turn Cities into Doughnuts: Empty Centres but Vibrant Suburbs. Available online: https://theconversation.com/coronavirus-could-turn-cities-into-doughnuts-empty-centres-but-vibrant-suburbs-151406?utm_medium=email&utm_campaign=Latest%20from%20The%20Conversation%20for%20December%209%202020%20-%201806517553&utm_content=Latest%20from%20The%20Conversation%20for%20December%209%202020%20-%201806517553+CID_9956330b106a8d08fec0001362b0f786&utm_source=campaign_monitor_uk&utm_term=Coronavirus%20could%20turn%20cities%20into%20doughnuts%20empty%20centres%20but%20vibrant%20suburbs.