2- Russell Pysklywec, Impact of rainfall reaches to roots of mountains, University of Toronto, 20-Apr-2006.

3- German Scientists: Earth is Smaller than People Think, www.dw-world.de, 06.07.2007.

4- Tectonic Plates, National Science Digital Library.

5- Allison Macfarlane, Rasoul B. Sorkhabi, Jay Quade, Himalaya and Tibet: Mountain Roots to Mountain Tops, Geological Society of America, 1999.

6- Plate tectonics, www.moorlandschool.co.uk

7-  FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Dr. Michael Pidwirny, University of British Columbia Okanagan, 10/03/2006.

8- Underneath the mountains, www.geology.wisc.edu

9- Dr. Michael Pidwirny, Introduction to the Lithosphere, University of British Columbia Okanagan.

10 - Australia on the move, www.ga.gov.au, 22 June 2004.

11- Ice Continent on the Move, www.nasa.gov, March 22, 2002.

12- Katherine Gypson, Cynthia Kirk and Karen Leggett, Mars Once Had Moving Plates Like Earth Has Now, www.voanews.com, 7 November 2005.

13- Moving Earth and Heaven, www.whoi.edu, February 23, 2004.

14-  Kenneth C. Macdonald and Paul J. Fox, The Mid-Ocean Ridge, Scientific American.