http://boeing.mediaroom.com/news-releases-statements?item=129665
http://www.aviationpros.com/news/12184273/kansas-city-airline-museum-to-restore-rare-1934-northrop-delta
https://feedity.com/hop.aspx?MzI1NzI25OXKKCkpsNLXTyzLSC1KzEnRS87P1c%2BwTywqyUzOSbU1sTS1TDOzSFPLLyixNQAA