@Inproceedings{stojanovic2004aafsqritoir, author = "Nenad Stojanovic and Ljiljana Stojanovic and Rudi Studer", booktitle = "IEEE/ACM Web Intelligence WI 2004", month = "September", pages = "120-137", publisher = "IEEE", title = "An Approach for Step-By-Step Query Refinement in the Ontology-based Information Retrieval", year = "2004", }