An application of Bradford’s law

identification of the core journals of pediatric neurosurgery and a regional comparison of citation density

Garrett T. Venable, Brandon A. Shepherd, Mallory L. Roberts, Douglas R. Taylor, Nickalus R. Khan, Paul Klimo

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Purpose: Bradford’s law describes the number of core journals in a given field or subject and has recently been applied to neurosurgery. The objective of this study was to use currently accepted formulations of Bradford’s law to identify core journals of pediatric neurosurgery. An additional analysis was completed to compare regional dependence on citation density among North American and European neurosurgeons.

Results: Regional comparison demonstrated a preference for the Journal of Neurosurgery and Child’s Nervous System, respectively, but four of the top five journals were common to both groups. Applying the verbal formulation of Bradford’s law to the North American citation database, a pattern of citation density was identified across the first three zones. Journals residing in the most highly cited first zone are presented as the core journals.

Conclusion: Bradford’s law can be applied to identify the core journals of neurosurgical subspecialties. While regional differences exist between the most highly cited and most frequently published in journals among North American and European pediatric neurosurgeons, there is commonality between the top five core journals in both groups.

Methods: All original research publications from 2009 to 2013 were analyzed for the 25 top publishing pediatric neurosurgeons in North America and Europe, which were sampled to construct regional citation databases of all journal references. Regional differences were compared with each database. Egghe’s formulation and the verbal formulation of Bradford’s law were applied to create specific citation density zones and identify the core journals.

Original languageEnglish (US)
Pages (from-to)1717-1727
Number of pages11
JournalChild's Nervous System
Volume30
Issue number10
DOIs
StatePublished - Jan 1 2014

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Neurosurgery
Pediatrics
Databases
North America
Nervous System
Publications

All Science Journal Classification (ASJC) codes

  • Pediatrics, Perinatology, and Child Health
  • Clinical Neurology

Cite this

An application of Bradford’s law : identification of the core journals of pediatric neurosurgery and a regional comparison of citation density. / Venable, Garrett T.; Shepherd, Brandon A.; Roberts, Mallory L.; Taylor, Douglas R.; Khan, Nickalus R.; Klimo, Paul.

In: Child's Nervous System, Vol. 30, No. 10, 01.01.2014, p. 1717-1727.

Research output: Contribution to journalArticle

Venable, Garrett T. ; Shepherd, Brandon A. ; Roberts, Mallory L. ; Taylor, Douglas R. ; Khan, Nickalus R. ; Klimo, Paul. / An application of Bradford’s law : identification of the core journals of pediatric neurosurgery and a regional comparison of citation density. In: Child's Nervous System. 2014 ; Vol. 30, No. 10. pp. 1717-1727.
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