“The New Yorker” and “Kurier” quote Prof. Siegfried Beer in their articles about the “Havana-syndrome” affecting US embassy personel in vienna:
https://www.newyorker.com/news/news-desk/vienna-is-the-new-havana-syndrome-hotspot
https://kurier.at/politik/ausland/havanna-syndrom-in-wien-das-scheint-mir-sehr-eigenartig/401446867
The “Standard” published a guest commentary by Thomas Riegler about the affair:
https://www.derstandard.at/story/2000128365714/ist-wien-neuer-hotspot-des-havanna-syndroms