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BAYLEY N, SCHAEFER ES.BAYLEY N, et al. Among authors: schaefer es.Psychiatr Res Rep Am Psychiatr Assoc. 1960 Dec;13:155-81.Psychiatr Res Rep Am Psychiatr Assoc. 1960.PMID: 13688116No abstract available.
BAYLEY N, SCHAEFER ES.BAYLEY N, et al. Among authors: schaefer es.Monogr Soc Res Child Dev. 1964;29:1-80.Monogr Soc Res Child Dev. 1964.PMID: 14263630No abstract available.
SCHAEFER ES.SCHAEFER ES.Vita Hum Int Z Lebensalterforsch. 1964;7:143-6. doi: 10.1159/000270075.Vita Hum Int Z Lebensalterforsch. 1964.PMID: 15446183No abstract available.