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  Author Title Year (down) Publication Serial Volume Pages Links
Zentall, S.S.; Zentall, T.R. Activity and task performance of hyperactive children as a function of environmental stimulation 1976 Journal of consulting and clinical psychology 272 44 693-697 details   openurl
Zentall, T.R; Hogan, D.E. Key pecking in pigeons produced by pairing keylight with inaccessible grain 1975 273 23 199-206 details   doi
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