Retrieved 2013-11-18. ↑ "Johan Galtung". Retrieved 4 April 2017. ↑ Genealogical data for Johan Galtung 1 2 Life of Johan Galtung (in Danish) 1 2 3 PRIO biography for Johan Galtung ↑ History of the IPRA 1 2 (E. Boulding 1982: 323) ↑ Dagens Nyheter 2003-01-15. ↑ Saybrook.edu 1 2 TRANSCEND biography on Johan Galtung 1 2 (K. Boulding 1977: 75) ↑ "Gruppe 7: Samfunnsfag (herunder sosiologi, statsvitenskap og økonomi)" (in Norwegian).