Boersma and Weenink 2013

Boersma, Paul and Weenink, David. 2013. Praat: doing phonetics by computer [Computer program]. Version 5.3.51, retrieved 2 June 2013 from http://www.praat.org.

@article{jacquesestimative-boersmapraat,
  author = {Boersma, Paul and Weenink, David},
  title  = {Praat: doing phonetics by computer [Computer program]. Version 5.3.51, retrieved 2 June 2013 from http://www.praat.org},
  year   = {2013}
}