T. Hahmann, B. Brodaric, M. Gruninger: Interdependence among material objects and voids. Proc. of the 8th Int. Conference on Formal Ontology in Information Systems (FOIS-2014), 2014. IOS Press. Abstract: Material-spatial interdependence (mat-dep) is a type of dependence in which the physical extents of two entities are necessarily and mutually contingent, e.g. an object and its matter, or a read more Interdependence Among Material Objects and Voids