?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Pericleous&rft.au=Pericleous%2C+Maria&rft.aufirst=Maria&rft.degree=Doctoral&rft.tpages=346&rft.title=How+the+activity+of+proving+is+constituted+in+a+Cypriot+classroom+for+12+year+old+students&rft.inst=UCL+(University+College+London)&rft.date=28+October+2017