... his serious hobby - the IETF https://inet.haw-hamburg.de/gallery/tnc10/P1040239.JPG/view https://inet.haw-hamburg.de/gallery/tnc10/P1040239.JPG/@@images/image-1200-cdb7f3d27e6b1c1a4d30362f12ddfeb4.jpeg ... his serious hobby - the IETF P1040239.JPG image/jpeg Type image/jpeg Dimension Dimension 4000x3000 Size File size 4.4 MB Download View full-size image