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Franz, Michael (2000). "Oberon: The Overlooked Jewel". In Böszörmény, Lászlo; Gutknecht, Jürg; Pomberger, Gustav (eds.). The School Niklaus Wirth: The Art of Simplicity. Morgan Kaufmann Publishers. pp. 41–53. CiteSeerX10.1.1.90.7173. ISBN1-55860-723-4.
reactive-instruments.eu
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André Fischer & Hannes Marais: The Oberon Companion. A Guide to Using and Programming Oberon System 3. vdf Hochschulverlag AG (1997). ISBN978-3728124937, out of print, but see notes in Getting Started section of the Oberon Wikibook