Scientometrics
  The paper provides an overview of the field of scientometrics, that is: the study of science, technology, and innovation from a quantitative perspective. We cover major historical milestones in the development of this specialism from the 1960s to today and discuss its relationship with the sociology of scientific knowledge, the library and information sciences, and science policy issues such as indicator development. The disciplinary organization of scientometrics is analyzed both conceptually and empirically, using a map of journals cited in the core journal of the field, entitled Scientometrics. A state-of-the-art review of five major research threads is provided: (1) the measurement of impact; (2) the delineation of reference sets; (3) theories of citation; (4) mapping science; and (5) the policy and management contexts of indicator developments. 
Loet Leydesdorff and Sta\v{s}a Milojevi\'c
cs.DL