Links
[1] https://www.alter.gr.ch/de/institution/wohn-und-pflegezentrum-tertianum-villa-sarona
[2] https://www.alter.gr.ch/de/javascript%3Ahistory.back%28%29
[3] https://www.alter.gr.ch/de/regionen/chur-regio
[4] https://www.tertianum.ch/de/tertianum-wohn-und-pflegezentrum-villa-sarona-chur
[5] https://maps.google.com/maps?q=Rigastrasse+22+7000+Chur&hl=de&z=14&t=m