Please note: full text downloads of patents is temporarily suspended from April 2023.This is due to Cybersecurity Administration of China (CAC) imposing new oversight requirements on specific content types appearing in the China National Knowledge Infrastructure (CNKI)
China National Knowledge Infrastructure (CNKI), is a database of Chinese knowledge-based information resources. This platform covers journals, theses, proceedings, newspapers, books and ancient books.
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JSTOR is a digital library of academic journals, books, and primary sources.