Sunitha Abburu and  Golla Suresh Babu,  Domain Knowledge Representation through Multiple Sub Ontologies: An Application Interoperability.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 124(4). 513 - 518
    [viewed 20 October 2021]. Available from: https://publications.waset.org/pdf/10008778.