1. The latency period;Alpert;Amer. J. Orthopsychiat.,1941
2. On latency;Bornstein;The Psychoanalytic Study of the Child,1951
3. A contribution to the psychoanalytic knowledge of the latency period;Buxbaum;Amer. J. Orthopsychiat.,1951
4. Issues in assessing development;Flapan;This Journal,1970
5. Developmental groupings of pre-school children;Flapan;Israel Ann. Psychiat. Rel. Discipl.,1972