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Number of items: 2.
2016
Hansen, Sonja Maria
(2016).
The potential of symbolic approximation. Disentangling the effects of approximation vs. calculation demands in nonsymbolic and symbolic representations.
PhD thesis, Universität zu Köln.
2015
Hansen, Sonja Maria, Haider, Hilde 
ORCID: 0000-0001-7293-3166, Eichler, Alexandra, Godau, Claudia, Frensch, Peter A. and Gaschler, Robert ORCID: 0000-0002-8576-5330
(2015).
Fostering Formal Commutativity Knowledge with Approximate Arithmetic.
PLoS One, 10 (11).
SAN FRANCISCO:
PUBLIC LIBRARY SCIENCE.
ISSN 1932-6203