This guide provides a comprehensive introduction to using the Crossref API for accessing metadata about scholarly articles and journals. It covers basic queries such as searching by title, author, and DOI, retrieving full paper details, finding citing papers, exploring journal statistics, and adhering to polite API usage guidelines. The article also discusses various use cases like literature reviews, trend analysis, research tool development, data enrichment, and academic retrieval and generation (RAG) systems. Full code examples are provided for each feature, allowing readers to implement the APIs directly without any setup or signup required.
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