<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Wirth, Niklaus / Gutknecht, Jürg</hi> (1992): <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Project Oberon: Design of an Operating System and Compiler</hi>. Addison-Wesley Longman: Amsterdam.