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. 1970 Apr;18(2):422-39.
doi: 10.1177/000306517001800210.

A principle of evolutionary biology for psychoanalysis. Schneirla's evolutionary and developmental theory of biphasic processes underlying approach and withdrawal and Freud's unpleasure and pleasure principles

M Schur, L B Ritvo

A principle of evolutionary biology for psychoanalysis. Schneirla's evolutionary and developmental theory of biphasic processes underlying approach and withdrawal and Freud's unpleasure and pleasure principles

M Schur et al. J Am Psychoanal Assoc. 1970 Apr.
No abstract available

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