References
- Haydu , G. G. 1962 . “ Manic-depressive rhythm: Its pharmacological modification and the nature of the self structure. ” . In Rhythmic Functions in the Living System Edited by: Wolf , W. Vol. 98 , 753 – 1326 . Ann. N.Y. Acad. Sci. .
- Plutchik , R. 1962 . The Emotions: Facts, Theories and a New Model New York : Random House. .
- Plutchik , R. 1965 . What is an emotion? . J. of Psychol. , 61 : 295 – 303 .
- Plutchik , R. 1967 . The affective differential: Emotion profiles implied by diagnostic concepts . Psychol, Rep. , 20 : 19 – 25 .