Supplemental Material for Delayed Gratification: A Grey Parrot (Psittacus erithacus) Will Wait for More Tokens
2015 ◽
Vol 129
(4)
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pp. 339-346
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2011 ◽
Vol 42
(2)
◽
pp. 309-312
◽
2009 ◽
Vol 3
(1)
◽
pp. 1-16
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Keyword(s):
2011 ◽
Vol 125
(2)
◽
pp. 175-184
◽