@INPROCEEDINGS{ecdl08-RPTW,  
  AUTHOR    = {Paraskevi Raftopoulou and Euripides G.M. Petrakis and Christos Tryfonopoulos, and Gerhard Weikum},  
  TITLE     = "{Information Retrieval and Filtering over Self-Organising Digital Libraries}",  
  BOOKTITLE = "{Proceedings of the 12th European Conference on Research and  Advanced Technology for Digital Libraries (ECDL)}", 
  YEAR      = {2008},
  PAGES     = {320--333},  
  MONTH     = {September},  
  ADDRESS   = "{Aarhus, Denmark}",
}