Compton, M., Barnaghi, P., Bermudez, L., Garcã-a-Castro, R., Corcho, O., Cox, S., Graybeal, J., Hauswirth, M., Henson, C., Herzog, A., Huang, V., Janowicz, K., Kelsey, W. D., Phuoc, D. L., Lefort, L., Leggieri, M., Neuhaus, H., Nikolov, A., Page, K., Passant, A., Sheth, A. and Taylor, K., 2012. The SSN Ontology of the W3C Semantic Sensor network incubator group. Web Semantics: Science, Services and Agents on the World Wide Web, 2012, Vol. 17(0), pp. 25--32. DOI=http://dx.doi.org/10.1016/j.websem.2012.05.003.