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518- Ecoinfo
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519- Philosophy
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520- Educational sciences
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521- Sociology
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522- History of science and technology
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523- History and sciences of litterature
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524- Linguistics
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525- Prehistory and protohistory
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526- Art and archaeology
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527- History and sciences of religions
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528- Administrative science
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529- Ethnology
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531- Geography
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533- Latin america
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533-10 General topics
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533-11 General bibliographies
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533-12 Civil service
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533-13 Law, justice, human rights
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533-14 Methodological and technical issues
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533-15 Research. Innovation
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533-16 Theories and sciences
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533-11 General bibliographies
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533-20 Archeology
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533-30 History
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533-40 Geography
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533-50 Political area
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533-60 Economy and management
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533-70 Ethnology
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533-80 Social problems
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533-90 Education and media
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533-100 Languages and literatures
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533-110 Fine arts
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533-10 General topics
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540- Repertory of art and archaeology.
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600-
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603- Computer processing and legal sciences
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610-
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616- Company management
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617- General economics
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731- Energy economics
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760- Public health. Hygiene.
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770- Psychology. Psychoanalysis. Psychiatry.
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790- Information and communication sciences