关于邮政编码调整方案的研究
苑春荟1,张志芸2,左震林3
AresearchonthemodifieddesignofPostCodes
YUAN Chun-hui1, ZHANG Zhi-yun2, ZUO Zhen-lin3
Acta Metallurgica Sinica(English letters) . 2002, (2): 32 -35 .