1. Parlay Group, Parlay API 4.0,
http://www.parlay.org
2. Parlay x,
http://www.parlay.org/en/specifications/pxws.asp
3. OWL-S,
http://www.w3.org/Submission/2004/07/
4. Web Ontology Language (OWL),
http://www.w3.org/2004/OWL
5. Hong, S.J., Han, S.Y., Choi, B., Kim, Y.J., Ahn, C.H.: The semantic PARLAY for 4G network. In: 2nd International Conference on Mobile Technology, Applications and Systems, pp. 15–17 (2005)