Gridcal
[largecalendar http://grical.org/s/?query=%23netz39&view=ical]
Gridcal2
[smallcalendar http://grical.org/s/?query=%23netz39&view=ical]
test1
[iCal https://cal.n39.eu/netz39/recurring.ics/]
test 2
[iCal https://cal.n39.eu/netz39/events.ics/]
test 3
[iCal https://cal.n39.eu/public/test.ics]