Catholijn M. Jonker Rob Kremer Pim van Leeuwen Dong Pan Jan Treur Mapping visual to textual knowledge representation. 367-378 2005 18 Knowl.-Based Syst. 7 http://dx.doi.org/10.1016/j.knosys.2005.05.003 db/journals/kbs/kbs18.html#JonkerKLPT05