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Barker, Kezia (2008) Flexible boundaries in biosecurity: accommodating gorse in Aotearoa New Zealand. Environment and Planning A 40 (7), pp. 1598-1614. ISSN 0308-518X.
Frost, Martin and Spence, N. (2008) Energy consumption and work-travel trips: London, Birmingham, and Manchester, 1981-2001. Environment and Planning A 40 (9), pp. 2238-2258. ISSN 0308-518x.