B. Information use and sociology of information H. Information sources channels supports A. Theoretical and general aspects of libraries and information I. Information treatment for information services BB. Bibliometric methods HA. Periodicals J. Technical services in libraries Newspapers archives museum CD. User training D. Libraries as physical collections DK. Health libraries Medical libraries activities education promotion GF. Biographies GG. Curricula aspects HZ. None of these L. Information technology and library technology but in this section