Glottolog database 4.2.1
Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Bank, Sebastian. 2020. Glottolog 4.2.1 Jena: Max Planck Institute for the Science of Human History. (Available online at https://glottolog.org)
Hammarström, Harald & Forkel, Robert & Haspelmath, Martin & Bank, Sebastian. 2020. Glottolog 4.2.1 Jena: Max Planck Institute for the Science of Human History. (Available online at https://glottolog.org)
