@ARTICLE{Proctor08,
  author  = {Michael I. Proctor and Christine Shadle and Khalil Iskarous},
  title   = {{A method of co-registering multiple Magnetic Resonance Imaged vocal tract volumes for fricatives}},
  journal = {The Journal of the Acoustical Society of America},
  year    = {2008},
  volume  = {123},
  pages   = {3735},
  number  = {5},
  url     = {http://asadl.org/jasa/resource/1/jasman/v123/i5/p3735_s3},
  doi     = {10.1121/1.2935244}
}