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  2. Hipparchus - Wikipedia

    en.wikipedia.org/wiki/Hipparchus

    Hipparchus was born in Nicaea (Greek: Νίκαια), in Bithynia.The exact dates of his life are not known, but Ptolemy attributes astronomical observations to him in the period from 147 to 127 BC, and some of these are stated as made in Rhodes; earlier observations since 162 BC might also have been made by him.

  3. Adobe Acrobat version history - Wikipedia

    en.wikipedia.org/wiki/Adobe_Acrobat_version_history

    September 1994. First version for Windows 3.1. Windows, Mac, SunOS, Solaris, HP-UX, IRIX, AIX, OS/2. Acrobat Catalog, which creates searchable indexes for PDF files. Adobe also released the first Acrobat Plug-ins SDK; allowing third-party developers to create plug-in programs for the Acrobat Exchange application. 3.0.

  4. Catalogues of classical compositions - Wikipedia

    en.wikipedia.org/wiki/Catalogues_of_classical...

    EM codes only for works without opus numbering and in the PDF version of the catalogue. In Finnish only. Non-thematic catalogue. Frederick Marvin: M Fanny Mendelssohn: Hellwig-Unruh, Renate (2000). Fanny Hensel geb. Mendelssohn Bartholdy: thematisches Verzeichnis der Kompositionen. Adliswil: Kunzelmann. ISBN 3-9521049-3-0. H Felix Mendelssohn

  5. Third Cambridge Catalogue of Radio Sources - Wikipedia

    en.wikipedia.org/wiki/Third_Cambridge_Catalogue...

    3C. The catalogue was published in 1959 by members of the Radio Astronomy Group of the University of Cambridge. Entries in the catalogue are identified by the prefix "3C" followed by the entry number, with a space - for example, 3C 273. The number denotes objects in order of increasing right ascension. The catalogue was produced using the ...

  6. List of academic databases and search engines - Wikipedia

    en.wikipedia.org/wiki/List_of_academic_databases...

    The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is available.

  7. History of PDF - Wikipedia

    en.wikipedia.org/wiki/History_of_PDF

    History of PDF. The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008. Since then, it has been under the control of an International Organization for Standardization (ISO) committee of ...

  8. MIT OpenCourseWare - Wikipedia

    en.wikipedia.org/wiki/MIT_OpenCourseWare

    Website. ocw .mit .edu. MIT OpenCourseWare ( MIT OCW) is an initiative of the Massachusetts Institute of Technology (MIT) to publish all of the educational materials from its undergraduate - and graduate-level courses online, freely and openly available to anyone, anywhere. The project was announced on April 4, 2001, [ 1] and uses Creative ...

  9. Google Scholar - Wikipedia

    en.wikipedia.org/wiki/Google_Scholar

    Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...