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In 2004 E. Singer published two articles and published one chapter. In 2005 E. Singer published three articles, published two other resultss and published one chapter. In 2006 E. Singer published four articles, gave three lectures and published one report. In 2007 E. Singer gave five lectures, published one article, published one chapter and published one book - monograph . In 2008 E. Singer gave six lectures, published three articles and published one book - monograph . In 2009 E. Singer gave eight lectures, published one book - monograph , published one website / portal and published one article. In 2010 E. Singer published five relevant positions, had four journal editorships, gave three lectures, published two articles, published one chapter, published one book editorship and published one book review . In 2011 E. Singer gave three lectures. In 2012 E. Singer gave seven lectures, published three articles, published one book - monograph and published one report. In 2013 E. Singer gave nine lectures, published three articles and published two book - monograph s. In 2014 E. Singer published one article.