Hakkinen, V. (1972). EEG vigilance measurement and loudness discrimination in humans during drowsy states. Univ. of Helsinki.
Citace podle Chicago (17th ed.)Hakkinen, Veikko. EEG Vigilance Measurement and Loudness Discrimination in Humans During Drowsy States. Helsinki: Univ. of Helsinki, 1972.
Citace podle MLA (8th ed.)Hakkinen, Veikko. EEG Vigilance Measurement and Loudness Discrimination in Humans During Drowsy States. Univ. of Helsinki, 1972.
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