Schäffner, W. (1992). Material Energy Information: Toward an Analog Code. The Arts, Education and Aesthetic Knowing : Ninety-first Yearbook of the National Society for the Study of Education ; Part II.
Chicago-referens (17:e uppl.)Schäffner, Wolfgang. "Material Energy Information: Toward an Analog Code." The Arts, Education and Aesthetic Knowing : Ninety-first Yearbook of the National Society for the Study of Education ; Part II 1992.
MLA-referens (8:e uppl.)Schäffner, Wolfgang. "Material Energy Information: Toward an Analog Code." The Arts, Education and Aesthetic Knowing : Ninety-first Yearbook of the National Society for the Study of Education ; Part II, 1992.
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