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Richard A. Shakesby, Variability in Neoglacial Moraine Morphology and Composition, Storbreen, Jotunheimen, Norway: Within-Moraine Patterns and Their Implications, Geografiska Annaler. Series A, Physical Geography, Vol. 71, No. 1/2 (1989), pp. 17-29
Richard A. Shakesby (Sun,) studied this question.