1. Associations of flutings, drumlins, hummocks and transverse ridges
2. J.R.L. Allen (1982 ) Sedimentary structures . Their Character and Physical Basis, Vol. I. Developments in Sedimentology, 593 pp. Elsevier, Amsterdam, The Netherlands.
3. Correlation of Swedish glacial varves with the Greenland (GRIP) oxygen isotope record