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Bibliographic Database
      Introduction
      Index history
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بعديآخرين
Earth Sciences Indexes
   Introduction
  
   With regard to the significance of scientific data and scientists demands to access to them, different methods of data transference have been produced. In the “information explosion age”, these methods have been changed and upgraded. Today, research arena has
   enormously developed. On the other hand, specialized research fields and the availability of large number of sources have made plenty of difficulties for scientists to access to their own field references.
   For this reason, information offering via systematic procedures such as bibliography preparations organizes collections in ways that provide users with convenient and logical access to materials.
   Bibliographies, bibliologies and indexes introduce books and available references in particular subjects expressing physical and analytical properties of information sources.
   For more than one century, some countries have had various types of bibliologies and indexes. In today world, these references ectronically supply the necessary data to the scientists and all those interested in form of CDs and Internet.
   Since Iran is a vast country, therefore, data collection is a difficult matter for researchers.
   In this regard, one of the researchers has said," It is impossible to carry out a research in Iran without shedding tears.” To solve this problem, each organization has prepared an appropriate systematic procedure for data offering to its own personnel.
    “Index” or “Union Catalog” is an availability list of
   books and other materials in several libraries in order to find storage location of library materials, easily. All users and even librarian can find library materials, archives and research
   institutes including book materials( like, books, essays, periodicals, theses and reports)and also audio and visual items by index. It includes available materials bibliology information in libraries of a particular geographical region. This information can
   be local, regional, national and international. Index is followed by centers or libraries bibliological data that references are stored in them. When a researcher or user finds his favorite publications, they can be borrowed directly or through inter-libraries lending
   system. Sometimes, users are not allowed to take the references outside the library.
   Index system assists scientists, researchers, professors and students to access to storage location of their favorite documents via collection and centralization of documents and references bibliological data. This system has a lot of advantages such as prevention of long traveling and quick access to favorite data. On the other hand, this plan prepares a homogeneous environment of special thematic bibliological data. This data can be presented to the member libraries.
 
 
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