Study finds blacks' English increasingly different
The 1985 New York Times article reporting on Labov's research demonstrating divergence for Black English Vernacular in Philadelphia. The article plays a major role in the divergence debates of the 1980s.
Citation: Fasold, Labov, Vaughn-Cooke, Bailey, Wolfram, Spears, and Rickford. 1987. Are black and white vernaculars diverging? Papers from NWAV XIV Panel Discussion. American Speech.