@techreport {197, title = {Social Network}, number = {D2.6}, year = {2013}, month = {September}, type = {Project deliverable}, url = {http://bioasq.org/sites/default/files/PublicDocuments/BioASQ_D2.6-Social\%20Network_final.pdf}, author = {Norman Heino and Axel-Cyrille Ngonga Ngomo} }