@Inproceedings{voelkel2006cdsctaofsaopk, address = "Aalborg University - Denmark", author = "Max V{\"o}lkel and Heiko Haller", booktitle = "Proc. of the 14th International Conference on Conceptual Structures 2006", month = "Juli", title = "Conceptual Data Structures (CDS) -- Towards an Ontology for Semi-Formal Articulation of Personal Knowledge", year = "2006", }