Rocco Oliveto Giuliano Antoniol Andrian Marcus Jane Huffman Hayes Software Artefact Traceability: the Never-Ending Challenge. 485-488 2007 ICSM http://dx.doi.org/10.1109/ICSM.2007.4362664 conf/icsm/2007 db/conf/icsm/icsm2007.html#OlivetoAMH07