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2. Aristotle (1995) The Complete Works of Aristotle. J. Barnes (ed), two vv., Bollingen Series, Princeton University Press.
3. Arnold MB (1960) Emotion and personality, vol. 1–2. Columbia University Press.
4. Arnold MB (1968) Feelings and emotions as dynamic factors in personality integration. In: Arnold MB (ed) The nature of emotion. Middlesex, Penguin.
5. Arnold MB (1970) Perennial problems in the field of emotion. In: Arnold MB (ed) Feelings and emotions: The Loyola Symposium. Academic Press, pp 169–185