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Lua i Stíl Chicago (17ú heag.)Wiethoff, Marion. Task Analysis Is Heart Work: The Investigation of Heart Rate Variability : A Tool for Task Analysis in Cognitive Work. [Delft, The Netherlands: Delft University Press, 1997.
Lua MLA (8ú heag.)Wiethoff, Marion. Task Analysis Is Heart Work: The Investigation of Heart Rate Variability : A Tool for Task Analysis in Cognitive Work. Delft University Press, 1997.
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