2
by Perrin, G.
Published in ELT Journal (2005)
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4
7
10
11
12
by Genil-Perrin, G.
Published in L'année psychologique (1910)
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13
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14
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15
17
19
20
by Perrin, G. G., Baudry, C.
Published in Le Lait (1993)
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