btuftin reviewed Śledztwo / Katar by Stanisław Lem (Dzieła / Stanisław Lem)
Review of 'Śledztwo / Katar' on 'Goodreads'
I don't know how I ended up with a reference to this edition, but as it's too much work to find out what original title matches the two short story collections (Høysnue / Mugg og Mørke) I've read in Norwegian translation, I'm just going to leave it in.