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Dornbusch, U, Robinson, D A, Moses, C, Williams, R and Costa, S (2006) Retreat of Chalk cliffs in the eastern English Channel during the last century. Journal of Maps, 2006. pp. 71-78.
Dornbusch, U, Robinson, D.A, Moses, C, Williams, R and Costa, S (2006) Chalk Cliff Retreat in East Sussex and Kent 1870s to 2001. Journal of Maps. pp. 71-78. ISSN 1744-5647