By Pozdnoukhov A.   Purves R.S.   Kanevski M.   in Annals of Glaciology

ISSN:1727-5644|49|1|107-113

International Glaciological Society‎(2008)‎

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By Jones C. B.   Purves R. S.   Clough P. D.   Joho H.   in International Journal of Geographical Information Science

ISSN:1365-8824|22|10|1045-1065

Taylor & Francis Ltd‎(2008)‎

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