Maintenance Information
| Period: 2012/1/30 19:30 -- 22:30 (Asia Time/GMT +9) |
| This site cannot be accessed for the above period. |
| We apologizes for any inconvenience this may cause, but this action is necessary to ensure a more reliable service. |
| Thank you for your kind attention and cooperation. |
In order to access the PERC Corpus, you need to obtain a User ID and a password.
For more details please visit the PERC Corpus website at