Home / Standards / GB/T 6513-1986 GB/T 6513-1986 Abolished Character set for bibliographic information interchange on mathematical coding of characters 文献书目信息交换用数学字符编码字符集 Standard Type GBT ICS 35.040 CCS L71 Status 废止 Issue Date 1986-06-19 Implementation 1987-06-01 Responsible Dept 国家标准委 Drafting Unit N/A