Saturday, April 07, 2007

http://www.aare.edu.au/04pap/wei04067.pdf

http://www.spz.tu-darmstadt.de/projekt_ejournal/jg-11-1/beitrag/Merkelbach1.htm

http://www.gio.gov.tw/taiwan-website/5-gp/yearbook/2001/chpt17-3.htm

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