International Article Number

国际商品编码（英語：International Article Number），即欧洲商品编码（European Article Number，EAN），原来只是欧洲范围内商品代碼，而现在已是全球范围内产品交易的商品代码。为了适应读码器辨认的需要，这些代码又做成大家熟知的条形码。

"List of International Schools" (Archive). Osaka Prefecture. Retrieved on August 17, 2015. "Private Schools where there is a large number of foreigners

Scorpion Fighter," Popular Science 1951 article with cutaway of F-89 with original six 20 mm cannon nose, article at bottom of page (1957) T.O. 1F-89D-1

可选项: signed number = [ sign , ] number ; 可按 BNF-风格定义为: signed number = sign , number | number ; 或 signed number = optional sign , number ; optional sign

"Songs of Slavery", Index on Censorship, Volume 36, Number 1, 2007, p. 138–140. International Slavery Museum（页面存档备份，存于互联网档案馆） National Museums