@article{20227, author = {{RÄ…czaszek-Leonardi,, Joanna and Nomikou, Iris and Rohlfing, Katharina and Deacon, Terrence W.}}, journal = {{Ecological Psychology }}, pages = {{39--73}}, title = {{{Language development from an ecological perspective: Ecologically valid ways to abstract symbols.}}}, volume = {{30}}, year = {{2018}}, }