Ulrich Müller
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with Ten Eycke Kayla, Baker Leslie (2015). Piaget's theory of intelligence. In S. Goldstein, D. Princiotta & J. A. Naglieri (eds.) Handbook of intelligence (pp. 137-151). Dordrecht: Springer.
(2005). The context of the formation of Heinz Werner's ideas. In J. Valsiner (ed.) Heinz Werner and developmental science (pp. 25-53). Dordrecht: Springer.