IP Geolocation based on identification routers and local delay distribution similarity - Zhao - 2019 - Concurrency and Computation: Practice and Experience - Wiley Online Library
R320 Series Wifi Lte Car Vehicle Gps 4g Router With Sim Card Slot And External Sma Antenna - Routers - AliExpress
CAIDA Catalog Details - A Look at Router Geolocation in Public and Commercial Databases