tunnel, in exchange for a structural encroachment fee of $2.5 million. Permission for the first 210米(700英尺) of tunnel under SpaceX's own land had been obtained
[2008-01-01]. (原始内容存档于2008-10-02). National Police Memorial granted planningpermission after 10-year campaign. Foster & Partners. 2002-10-04 [2008-01-01]