Zeitschriftenartikel
Chapman, M., &
Lindenberger, U. (1988). Functions, operations, and décalage in the development of transitivity.
Developmental Psychology,
24, 542–551. https://doi.org/10.1037/0012-1649.24.4.542
(Reprinted in Jean Piaget: Critical assessment. Vol. 2, pp. 158-181, by L. Smith, Ed., 1992, London: Routledge).