第一个拉丁字母的汉语拼音方案是怎样产生的

Diyi ge Lading Zimu de Hanyu Pinyin Fang'an Shi Zenyang Chansheng de?
[How Was the First Romanized Spelling System for Sinitic Produced?]

by YIN Binyong (尹斌庸)

Mandarin writing in Chinese characters about romanization