User:Lacek2
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| This is a Wikipedia user page. This is not an encyclopedia article or the talk page for an encyclopedia article. If you find this page on any site other than Wikipedia, you are viewing a mirror site. Be aware that the page may be outdated and that the user whom this page is about may have no personal affiliation with any site other than Wikipedia. The original page is located at https://en.wikipedia.org/wiki/User:Lacek2. |
| en-4 | This user can contribute with a near-native level of English. |
| pl | Polski jest językiem ojczystym tego użytkownika. |
 | This user is a participant in WikiProject Physics. |