IP List distribution Walecka J. Introduction to Quantum Mechanics 2021, total 4
| IP | Country | City | ISP |
|---|---|---|---|
| 121.149.100.117 | Republic of Korea | Korea Telecom | |
| 5.178.168.189 | Georgia | Magticom Ltd. | |
| 81.79.189.48 | United Kingdom | Vodafone | |
| 92.40.172.143 | United Kingdom | Three |