Previous Article Next Article Table of Contents Polymer Science and Technology, Vol.4, No.2, 122-123, April, 1993 Export Citation [데이타 뱅크] 세계주요국의 R&D 투자액과 화학문헌발표 및 특허권 소유 비율 조창기 Please enable JavaScript to view the comments powered by Disqus.