monography vs papering

monography

noun
  • Representation by lines without colour; an outline drawing. 

  • A monograph. 

papering

noun
  • Wallpaper. 

  • A technique of boycotting a judge by the Public Defender's Office by filing a request for a different judge in every case assigned to this judge. 

How often have the words monography and papering occurred in a corpus of books? (source: Google Ngram Viewer )