Deletion of Polsko-angielsko-niemiecki Glosariusz regionalny Województwa Opolskiego

Comment: The main question for us is whether the book is notable. It caused a minor controversy in Poland, but the coverage of it was limited (:pl:Nowa Trybuna Opolska (in 2004 https://nto.pl/glosariusz-pojdzie-na-przemial/ar/3999409) - regional newspaper; gazeta.pl (https://web.archive.org/web/20131005014817/http://wiadomosci.gazeta.pl/kraj/1,34309,2062655.html) - larger paper; the regional paper had another article on this in 2012 https://nto.pl/glosariusz-ksiazka-zakazana-przez-urzad-marszalkowski/ar/4475037); and that's it - I can't find any evidence of any discussion in other Polish media, nor can find any evidence that a single scholar even mentioned this in their studies. The exception is the author itself, who clearly tried to get this written about (with little luck); and here we have to note that this very article - ours, on Wikipedia - has been written by the author himself, who seems to be occasionally active, and obviously has a major . This also explains why the article is heavily slanted and makes claims not present in the sources (as far as I can claim), so this also has the OR issue. I think this could be notable once some independent scholar writes about this incident, but for now, I don't think it has generated enough coverage, and the addition of COI is quite problematic too
Stance: delete
Cited policy: Wikipedia:Conflict of interest (WP:COI)