@misc{Wells1995,
  author = {Wells, J. C.},
  note   = {[Online; accessed 28-January-2018]},
  title  = {Computer-coding the IPA: a proposed extension of SAMPA},
  url    = {https://www.phon.ucl.ac.uk/home/sampa/ipasam-x.pdf},
  year   = {1995}
}