FOR ARCHIVING: Registration form for 'hanoi' --- LANGUAGE SUBTAG REGISTRATION FORM 1. Name of requester: Chung Le 2. E-mail address of requester: chungvle&yahoo.com 3. Record Requested: Type: variant Subtag: hanoi Description: The Hà Nội variant of Vietnamese Prefix: vi 4. Intended meaning of the subtag: vi-hanoi indicates the Hà Nội variant of Vietnamese. 5. Reference to published description of the language (book or article): "Statistical Analysis of Vietnamese Dialect Corpus and Dialect Identification Experiments" by Pham Ngoc Hung, Trinh Van Loan and Nguyen Hong Quang (https://ijseas.com/volume2/v2i8/ijseas20160825.pdf). In this paper, the three main variants (called dialects in the paper) are discussed: Hà Nội, Huế and Hồ Chí Minh City. 6. Any other relevant information: