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Jürgen Habermas
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Jurgen Kluge & Wolfram Stein & Thomas Licht
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Harry Smith & Greg Attwood & Ian Bettison & Alan Clegg & Gill Dyer
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Bruce C. Donaldson
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Amar Shamo
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Sarmoun Gesellschaft Deutschland
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Fritz Peters
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Edwin Wolfe
Teachings of Gurdjieff: A Pupil's Journal
Charles Stanley Nott
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Johanna Petsche
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James Moore
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Colin Wilson
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John G. Bennett
Ursprung und Hintergrund seiner Lehre
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Mohammad H. Tamdgidi
Gurdjieff (Oxford Studies in Western Esotericism)
Joseph Azize
Gurdjieff and Music
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Louis Pauwels
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Irmis B. Popoff