http://www.xoch.info/presentations.html 2012-02-11 http://www.xoch.info/index.html 2012-02-11 http://www.xoch.info/bes.html 2012-02-11 http://www.xoch.info/theses-advised.html 2012-02-11 http://www.xoch.info/cv.html 2012-02-11 http://www.xoch.info/publications.html 2012-02-11 http://www.xoch.info/collaboration.html 2012-02-11 http://www.xoch.info/contact.html 2012-02-11 http://www.xoch.info/webmail.html 2012-02-11 http://www.xoch.info/baduk.html 2012-02-11