## References

Blake,, E., Clarke, G. K. C. and Gérin., Μ. C.
1992. Tools for examining subglacial bed deformation. J. Glacial., 38(130), 388 – 396.

Carol,, H.
1947. The formation of roches moutonnées. J. Glaciol., 1(2), 57 – 59.

Demorest,, M.
1941. Glacier flow and its bearing on the classification of glaciers. Geol. Soc. Am. Bull., 52(12), Part 2, 2024 – 2025.

Demorest,, M.
1942. Glacier regimes and ice movements withing glaciers. Am. J. Sci., 240(1), 31 – 66.

Fowler,, А. C.
1979. A mathematical approach to the theory of glacier sliding. J. Glaciol., 23(89), 131 – 141.

Fowler,, А. C.
1981. A theoretical treatment of the sliding of glaciers in the absence of cavitation. Philos. Trans. R. Soc. London, Ser. A, 298(1445), 637 – 685.

Gudmundsson,, G. H.
1994a. Convergent glacier flow and perfect sliding over a sinusoidal bed.(Ph. D. thesis, Eidgenössische Technische Hochschule, Zürich, No. 10711.)

Gudmundsson,, G. H.
1994b. Glacier sliding over sinusoidal bed and the characteristics of creeping flow over bedrock undulations, Eidg Tech. Hochschule, Zürich. Versuchsanst. Wasserbau, Hydrol. Glaziol. Mitt. 130.

Gudmundsson,, G. H.
1997. Basal-flow characterstics of a non-linear flow sliding frictionless over strongly undulating bedrock. J. Glaciol., 43(143), 80 – 89.

Hooke,, R. LeB., Holmlund, P. and Iverson, N. R. 1987. Extrusion flow demonstrated by bore-hole deformation measurements over a riegel, Storglaciären, Sweden. J. Glaciol., 33(113), 72 – 78.

Kamb,, Β.
1970. Sliding motion of glaciers: theory and observation. Rev. Geophys. Space Phys., 8(4), 673 – 728.

Liboutry,, L. A.
1987. Very slow flows of solids: basics of modeling in geodynamics and glaciology. Dordrecht, etc., Martinus Nijhoff Publishers.

Meyssonnier,, J.
1983. Ecoulement de la glace sur un lit de forme simple: expérience, modélisation, paramétrisation du frottement. (Ph.D. thesis, Université de Grenoble I.)

Morland,, L. W.
1976a. Glacier sliding down an inclined wavy bed. J. Glaciol., 17(77), 447 – 462.

Morland,, L. W.
1976b. Glacier sliding down an inclined wavy bed with friction. J. Glaciol., 17(77), 463 – 177.

Nye,, J. F.
1952. Reply to Mr. Joel E. Fisher’s comments. J. Glaciol., 2(11), 52 – 53.

Nye,, J. F.
1969. A calculation on the sliding of ice over a wavy surface using a Neutonian viscous approximation. Proc. R. Soc. Londun. Ser. A, 311(1506), 445 – 467.

Nye,, J. F.
1970. Glacier sliding without cavitation in a linear viscous approximation. Proc. R. Soc. London, Ser. A, 315(1522), 381 – 403.

Raymond,, C. F. Unpublished, Numerical calculation of glacier flow by finite elements methods. Seattle, WA, University of Washington. Geophysics Program. (Unpublished report for National Science Foundation Grant No. DPP74-19075.)

Schweizer,, J.
1989. Friction at the base of a glacier. Eidge. Tech. Hochschule, Zürich. Versuchsanst. Wasserbau, Hydrol. Glaziol. Min. 101.

Schweizer,, J. and Iken, A. 1992. The role of bed separation and friction in sliding over an undefortnable bed. J. Glaciol., 38(128), 77 – 92.

Seligman,, G.
1947. Extrusion flow in glaciers: a description of tests to prove the hypothesis and some details regarding its influence on glacial erosion. J. Glaciol., 1(1), 12 – 21.

Streiff-Becker,, R.
1938. Zur Dynamik des Firneises. Z. Gletscherkd., 25(1 – 2), 1 – 21.

Weertman,, J.
1957. On the sliding of glaciers. J. Glaciol., 3(21), 33 – 38.

Weertman,, J.
1964. The theory glacier sliding. J. Glaciol., 5(39), 287 – 303.

Weertman,, J.
1979. The unsolved general glacier sliding problem. J. Glaciol., 23(89), 97 – 115).