The researcher, Isaac Kfir, is with the International Institute for Counter- Terrorism, where he studies
issues relating to post-conflict reconstruction (security issues) and transitional justice (restorative and retributive justice). His other research looks at the effect of Islamic radicalism within the Arab-Israeli conflict.
The book in question is Al-Qaeda: From Global Network to Local Franchise, by Christina Hellmich of the University of Reading in the UK. The offending article appeared in Terrorism and Political Violence, a Taylor & Francis title. According to the notice:
The Editors and Taylor & Francis, Publishers, are retracting the following article from publication in Terrorism and Political Violence: Isaac Kfir, “Christina Hellmich. Al-Qaeda: From Global Network to Local Franchise,” Terrorism and Political Violence 25, no 5 (2013): 843–845. DOI: 10.1080/09546553.2013.842377.
The article is being retracted due to its previous publication in the Journal of Policing, Intelligence and Counter Terrorism: Isaac Kfir, “Al-Qaeda: From global network to local franchise,” Journal of Policing, Intelligence and Counter Terrorism 8, no 2 (2013): 200–201. DOI: 10.1080/18335330.2013.833490.
Kfir’s review can be found here.