The NASA Technical Reports Server is a valuable resource for researchers, students, educators, and the public to access NASA's current and historical technical literature and engineering results. Over 500,000 aerospace-related citations, over 200,000 full-text online documents, and over 500,000 images and videos are available. NTRS content continues to grow as new scientific and technical information (STI) is created or funded by NASA.

POPLINE is the world's largest bibliographic database on population, family planning, reproductive health and related issues, containing hundreds of thousands of records, representing published and unpublished literature, including books and book chapters, journal articles, technical reports, conference papers, newspaper articles, theses and disserations, and laws, bills and court decisions. Note: The full text ordering option is available only in developing countries.

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