?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Hilton&rft.aufirst=C&rft.au=Hilton%2C+C&rft.date=26+November+2019&rft.title=Frontiers+in+Education&rft.volume=4&rft.atitle=Fingers+Matter%3A+The+Development+of+Strategies+for+Solving+Arithmetic+Problems+in+Children+With+Apert+Syndrome&rft.genre=article