ƛ期刊在1934年引入: Herzog, George; Newman, Stanley S.; Sapir, Edward; Swadesh, Mary Haas; Swadesh, Morris; Voegelin, Charles F. Some orthographic recommendations
区域特征their linguistic thoughts", in Shipley, William (编). In Honor of Mary Haas: From the Haas Festival Conference on Native American Linguistics. the Hague: