Barber, J. R.; Burdett, C. L.; Reed, S. E.; Warner, K. A.; Formichella, C.; Crooks, K. R.; Theobald, D. M. & Fristrup, K. M. (2011), 'Anthropogenic noise exposure in protected natural areas: estimating the scale of ecological consequences', Landscape Ecology 26 (9), 1281-1295.