https://artem.dis.uj.edu.pl/twiki//bin/view/Main/WebRss
For other TWiki webs, replace /Main/
with the name of the web:
https://artem.dis.uj.edu.pl/twiki//bin/view/Pub/WebRss
https://artem.dis.uj.edu.pl/twiki//bin/view/Sandbox/WebRss
https://artem.dis.uj.edu.pl/twiki//bin/view/TWiki/WebRss