8Abbruzzese B, Leibowitz S G. Environmental auditing: a synoptic approach for assessing cumulative impacts to wetlands. Environmental Management, 1997, 21(3): 457-475.
9Tricker R C. Assessing cumulative environmental effects from major public transport projects. Transport Policy, 2007, 14:293-305.
10Wickham J D, Jones K B, Riitters K H, et al. Environmental auditing: an integrated environmental assessment of the US Mid-Atlantic region. Environmental Management, 1999, 24(4): 553-560.