Francesca Soro, Idilio Drago, Martino Trevisan, Marco Mellia, Joao Ceron, Jose J. Santanna (2019) Are Darknets All The Same? On Darknet Visibility for Security Monitoring, In: 2019 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN), pp. 1-6, ISBN: 978-1-7281-1434-7