@ARTICLE{
       Author = {Du, B. and Candela, M. and Huffaker, B. and Snoeren, A. and claffy, k.}, 
       Title = {{RIPE IPmap Active Geolocation: Mechanism and Performance Evaluation}},
       Journal = {ACM SIGCOMM Computer Communication Review (CCR)}, 
       Volume = {50},
       Month = {Apr},
       Year = {2020},
       Keywords = {measurement methodology   topology   routing}
}