1Lucia Moses,Cover ads raise profits,hackles；Gannett the biggest fish in bottom(of page)feeding frenzy,Editor & Publisher,Oct.20,2000,Pg.26.
2John R.Irby,Newspaper front-page ads-The good,the bad and the ugly,Presentations at the 116th annual convention of the National Newspaper Association,2002.
3Geneva Overholsr,Front-page Ads and Other Pupposed Threats to Gredibility,Columbia Journalism Review,September-October 2000,pg72.
