. . . "Nils Petter Gleditsch" . "Nils P. Gleditsch" . "Nils Petter Gleditsch"@en . . "Nils P. Gleditsch" . . "Norwegian academic" . . . . . "Nils Petter GLEDITSCH" . . "P." . "N. P. Gleditsch" . "Nils"@en . . . "Nils P." . "Gleditsch"@fr-FR . "Petter"@en . "Nils Petter" . . . "N. P. Gleditsch" . . . . "Nils Gleditsch" . "1942-07-17" . "GLEDITSCH" . "Gleditsch"@en . . "N." . "N. P." .