@TechReport{Bohn+Feinerer+Hornik+Mair:2009,
    author		= {Angela Bohn and Ingo Feinerer and Kurt Hornik and Patrick Mair},
    title		= {An Approach to Incorporate Texts into a Social Network Analysis of Communication Graphs},
    institution	        = {Department of Statistics and Mathematics, Wirtschaftsuniversit\"at Wien, Research Report Series},
    year		= {2009},
    type		= {Report},
    number		= {96},
    month	        = {December},
    url		        = {http://epub.wu-wien.ac.at/}
    }