Wikimedia_Hackathon_2025_Group_photo_from_drone
Nabbegat, CC BY-SA 4.0, via Wikimedia Commons
Group Photo-2nd WTS
D035926B-DF56-4676-A7B4-FD5AE7E7B16C
Wikimedia_Hackathon_Vienna_2017-05-19_Mentoring_Program_Introduction_003
Manfred Werner (Tsui)