Sebastian Ceronik
@szychan
Poland, GdaĆsk
Joined Oct 2007
World Rank: #81908 (0.1 points)
Institution: .
Activity over the last year
Effectiveness
- Problems solved
- 22
- Solutions submitted
- 100
Poland, GdaĆsk
Joined Oct 2007
World Rank: #81908 (0.1 points)
Institution: .