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. 1974 Spring;7(1):167–169. doi: 10.1901/jaba.1974.7-167
A note on the absence of a Santa Claus in any known ecosystem: a rejoinder to Willems1
1University of Kansas
1
Reprints may be obtained from the author, Dept. of Human Development, University of Kansas, Lawrence, Kansas 66044.
PMCID: PMC1311659 PMID: 16795462
See "Behavioral technology and behavioral ecology" on page 151.