"1935-01-01" . . "Peter Gustaaf Swanborn" . "P."@en . "P.G" . "Peter Swanborn" . "P. G Swanborn" . "Swanborn, P.G. (Peter Gustaaf)" . . . "Peter Gustaaf" . . "Swanborn" . "Peter G. Swanborn" . "Swanborn"@en . . . "G" . "Peter G." . "P.G Swanborn" . "Peter G. Swanborn" . "http://www.wikidata.org/entity/Q6581097" . "G."@en . "Peter" . "Peter G Swanborn" . "Peter Swanborn" . "P. G. Swanborn"@en . "P.G. Swanborn"@nl-NL . "P.G" . "Swanborn, P. G. (Peter Gustaaf)" . "Swanborn P.G" . "Peter Gustaaf Swanborn"@en . "Gustaaf" . . .