Patrícia Nunes Gonçalves Renata Vieira Lucia Helena Machado Rino CorrefSum: Referencial Cohesion Recovery in Extractive Summaries. 224-227 2008 PROPOR http://dx.doi.org/10.1007/978-3-540-85980-2_25 conf/propor/2008 db/conf/propor/propor2008.html#GoncalvesVR08