Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, 편집. (2023). 〈Central Alemannic〉. 《Glottolog 4.8》. Jena, Germany: Max Planck Institute for the Science of Human History.
Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, 편집. (2023). 〈Walser〉. 《Glottolog 4.8》. Jena, Germany: Max Planck Institute for the Science of Human History.