1. Batchelor, G. K., , An Introduction to Fluid Dynamics, Cambridge University Press, Cambridge, 1967,
2. Zeitliche Änderungen in der Geschwindigkeit der Gletscherbewegung;Blumcke;Sitzungsber. Math. Phys. Kl. Bayer. Akad. Wiss.,1905
3. On the origin and transport of englacial debris in Svalbard glaciers;Boulton;J. Glaciol,1970
4. Surface velocity measurements on the Kaskawulsh glacier;Brecher,1969
5. Daily, J. W., , D. R. F., Harleman, , Fluid Dynamics, Addison-Wesley, Reading, Mass., 1966,