@unpublished{TUW-168239,
    author = {Frank, Andrew U.},
    title = {Time and Process in GIS: What can ontology contribute?},
    year = {2008},
    note = {eingeladen; Vortrag: Informatique Universit{\'e} de Pau et du Pays d'Adour, Pau, France; 2008-11-14}
}