use filter statement to get rid of empty strings in translatable Author attrs caused by attributes absent in AOI record
use filter statement to get rid of empty strings in translatable Author attrs caused by attributes absent in AOI record

SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2