@mastersthesis {460, title = {The Use of Semantic Graphs in Automatic Summarization: Comparative Case Studies in Biomedicine, Journalism and Tourism (Spanish and English versions)}, volume = {PhD Thesis}, year = {2011}, attachments = {http://nil.fdi.ucm.es/sites/default/files/Tesis_Laura_Plaza_Morales.pdf}, author = {Plaza, Laura} }