Systemic contrast and Catalan rhotics

@inproceedings{Padgett2009SystemicCA,
  title={Systemic contrast and Catalan rhotics},
  author={Jaye Padgett},
  year={2009},
  url={https://api.semanticscholar.org/CorpusID:15197551}
}
Abstract It is argued here that an appealing approach to the distribution and behavior of rhotics in Catalan can be had by appealing to the maintenance, and the perceptual goodness, of contrast… 
...
...