International list
The list is compiled in order of the discovery of a site.
It isn't always for sure that a link still is functioning.
Many of this list also may be found as a sorted list at the site of the NASS.
In the menu at left you will find a limited selection.
Become also a member of the International mailing list.
Subscribe at the website:
"https://lists.uni-koeln.de/mailman/listinfo/sundial"
Messages have to be send to the e-mail address:
sundial@uni-koeln.de
English translation: RH