The Campaign to save the Railway Network. Single or Return - the official history of the Transport Salaried Staffs' Association. The Transport Salaried Staffs’ Association (TSSA). [2011-12-10]. (原始内容存档于2011-05-14).
urban.nl
Concept Development: ‘Woonerf’(PDF). The International Institute for the Urban Environment. 2005 [2008-01-13]. (原始内容(PDF)存档于2007-10-11).
The Campaign to save the Railway Network. Single or Return - the official history of the Transport Salaried Staffs' Association. The Transport Salaried Staffs’ Association (TSSA). [2011-12-10]. (原始内容存档于2011-05-14).