The article is in Hungarian, written by Pinter Bence and can be found at sci-fi.mandiner.hu
The summary in English states: "We started our investigation about Galaktika magazine upon coming across a warning about them on Doug Smith's website.
Having reviewed each volume of last year's Galaktika, we found that the
majority of the foreign stories were pirated from online portals such
as Clarkesworld, Strange Horizons, Lightspeed, Tor.com, or Popular
Science; and from certain anthologies (Years Best SF 14, eds. David G.
Hartwell and Kathryn Cramer, Eos, 2014. and There Won't Be War, eds.
Harry Harrison and Bruce McAllister, Tor, 1991.). We contacted the
authors, the editors, and the websites, and have learned that Galaktika
did not purchase the rights for most of these stories. The only
exception we know of is Jason Sanford's short story. Also, there are
reports from 2006 and 2012 about Galaktika publishing short stories
The article was linked to by Sean Wallace on FaceBook and then reposted by Ellen Datlow (among others, I assume) before being picked up and posted over at the Absolute Write Water Cooler. I'm trying to track down a more detailed summary in English. (Google Translate produces somewhat... muddy results.)