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"revision of high-technology sector and product classification " (oecd, sti working paper 1997/2) bibliometrics
"对高技术部门和产品分类的修订 "(经合组织，第1997/2号科学、技术和创新工作文件)
bibliometrics bibliometric indicators and analysis of research systems, methods and examples, by yoshiko okubo (oecd, sti working paper 1997/1).
文献计量学指标及研究系统、方法和范例的分析，yoshiko okubo(经合发组织，sti工作文件1997/1)
"bibliometric indicators and analysis of research systems, methods and examples ", by yoshiko okubo (oecd, sti working paper 1997/1)
"bibliometric indicators and analysis of research systems, methods and examples ",by yoshiko okubo(经合组织，第1997/1号科学、技术和创新工作文件)
