Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Marina Purgina and Maxim Mozgovoy and John Blake,WordBricks: Mobile Technology and Visual Grammar Formalism for Gamification of Natural Language Grammar Acquisition,Journal of Educational Computing Research,0735-6331,SAGE Publications,2019-02-26,58,1,126-159,https://cir.nii.ac.jp/crid/1360302868762094720,https://doi.org/10.1177/0735633119833010