AUTHOR=Halford Graeme S. , Andrews Glenda TITLE=Three-year-olds' theories of mind are symbolic but of low complexity JOURNAL=Frontiers in Psychology VOLUME=Volume 5 - 2014 YEAR=2014 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2014.00682 DOI=10.3389/fpsyg.2014.00682 ISSN=1664-1078