1. Why underground space should be included in urban planning policy–And how this will enhance an urban underground future;Admiraal;Tunn. Undergr. Space Technol.,2016
2. Urban form and the redevelopment of central business districts;Beauregard;J. Architect. Plann. Res.,1986
3. Bélanger, P., 2011. Underground urbanism: the infrastructure of Toronto‘s Pedestrian Network. In: 11th ACUUS International Conference Proceedings, Athens.
4. Besner, J., 2007. Develop the underground space with a master plan or incentives. In: 11th ACUUS International Conference Proceedings, Athens.
5. Besner, J., 2014. Planning and developing an underground city with or without a master plan: the Montreal case. In: 14th ACUUS International Conference Proceedings, Seoul.