@article{LonnemannLinkersdoerferNagleretal.2013, author = {Jan Lonnemann and Janosch Linkersd{\"o}rfer and Telse Nagler and Marcus Hasselhorn and Sven Lindberg}, title = {Spatial representations of numbers and letters in children}, journal = {Frontiers in psychology}, volume = {4}, number = {544}, doi = {10.3389/fpsyg.2013.00544}, year = {2013}, }