https://www.egovcenter.ch/willisau/de/raumreservation/welcome.php?SESSIONCMS=vshs2njnb3lbafk0bv4qv2jsc2&action=none&dz=1714472549&raum_id%5B0%5D=7283&show=belegung&start_date=2024-05-02&view=day01.06.2024 18:56:01