IP List distribution D'Angelo J. Mathematical Thinking. Problem-Solving and Proofs 2ed 2000, total 3
| IP | Country | City | ISP |
|---|---|---|---|
| 135.23.146.4 | Canada | Scarborough | TekSavvy Solutions |
| 60.168.244.123 | China | Hefei | China Telecom |
| 60.168.245.31 | China | Hefei | China Telecom |