Anttonen, A., J. Luukkonen, E. Sandman, S. Santalahti, T. Ylitalo, and E. Gruzdeva. “Attritional Phenomena in the Nivkh Language on Sakhalin”. Studia Orientalia Electronica, vol. 117, Oct. 2016, pp. 201-25, https://journal.fi/store/article/view/59480.