Sari Hakkarainen Anders Kofod-Petersen Carlos Buil Aranda Situated Support for Choice of Representation. 409-412 2005 conf/webi/2005 Web Intelligence http://doi.ieeecomputersociety.org/10.1109/WI.2005.133 db/conf/webi/webi2005.html#HakkarainenKA05