Deletion of Na brzegu rzeki

Comment: per Eastmain. Satisfies criteria 5 of the guideline . The author, Czesław Miłosz, won a nobel prize for literature (and other important awards
Stance: keep
Cited policy: Wikipedia:Notability (WP:NBOOK)

Comment: Another  #5 case. I've added two more sources that discuss themes and some particular poems. More could be written based on those and I'm sure there are more sources to be found in English and Polish (and Lithuanian
Stance: keep
Cited policy: Wikipedia:Notability (WP:NBOOKS)