Jerry L. Hintze and Ray D. Nelson.
Violin Plots: A Box Plot-Density Trace Synergism.
In The American Statistician, vol. 52, no. 2, pp. 181--184, 1998.

Bibtex:

@Article{ 	 hintze:1998:VPDT,
  author = 	 "Jerry L. Hintze and Ray D. Nelson",
  title = 	 "Violin Plots: A Box Plot-Density Trace Synergism",
  journal = 	 "The American Statistician",
  volume = 	 "52",
  number = 	 "2",
  pages = 	 "181--184",
  month = 	 "May",
  year = 	 "1998",
}

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