Exploration as a mediator of the relation between the attainment of motor milestones and the development of spatial cognition and spatial language
Developmental Psychology (2015) - Comment
doi: 10.1037/a0039572  issn: 1939-0599  issn: 0012-1649  pubmed: 26192037 

Ora Oudgenoeg-Paz, Paul P. M. Leseman, M. (Chiel) J. M. Volman