Madhushi Bandara and  Dharshana Kasthurirathna and  Danaja Maldeniya and  Mahendra Piraveenan,  Detecting Geographically Dispersed Overlay Communities Using Community Networks.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 121(1). 80 - 85
    [viewed 26 January 2022]. Available from: https://publications.waset.org/pdf/10006271.