@misc{discovery1418528,
            year = {2013},
           title = {Exploring Punctuated Equilibrium in the English Planning System 1947-2011},
       booktitle = {Political Studies Association},
           month = {March},
             url = {https://discovery.ucl.ac.uk/id/eprint/1418528/},
          author = {Morphet, JR}
}