User:Ggck2
| en-5 | This user can contribute with a professional level of English. |
| de-5 | Dieser Benutzer spricht Deutsch auf einem professionellen Niveau. |
| fr-2 | Cet utilisateur peut contribuer avec un niveau intermédiaire en français. |
 -2 | This user is an intermediate LaTeX user. |
| HTML-2 | This user is an intermediate HTML user. |
| asm-1 | This user is a beginning assembly language programmer. |
| BASIC-2 | This user is an intermediate BASIC programmer. |
| Pascal-2 | This user is an intermediate Turbo Pascal programmer. |
| TCP/IP | The user was active on the Internet before the World Wide Web was invented. | WWW |
 | This user has posted to Usenet newsgroups. |
Authority control databases – Gunter G.C. Kuhnle | |
|---|---|
| Academics | |
