Gerald Schneider (EDT)/ Nils Petter Gleditsch (EDT)
(2)
Nils Petter Gleditsch (EDT)
(2)
Gerald Schneider (EDT)/ Katherine Barbieri (EDT)/ Nils Petter Gleditsch (EDT)
(1)
Gleditsch, Professor Nils Petter (Peace Research Institute Oslo Norway)
(1)
Paul F. Diehl (EDT)/ Paul F. Diehl/ Nils Petter Gleditsch (EDT)
(1)