@misc{onthelinguisticprehistoryofhokkaidoconference,
  title = {On the linguistic prehistory of Hokkaidō (conference presentation)},
  author = {Alexander Vovin},
  year = {2013},
  language = {ain},
  howpublished = {https://www2.ninjal.ac.jp/past-events/2009\_2021/event/specialists/symposium/files/sympo20130223-24/Vovin.abs.pdf}
}