Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WATANABE Mitsuo,"Interpretation of educational phenomena by means of the concept of W. Klafki's ""Doppelseitige Erschliessung""",Research Journal of Educational Methods,03859746,National Association for the Sudy of Educational Methods,1993,18,0,1-9,https://cir.nii.ac.jp/crid/1390282680800783104,https://doi.org/10.18971/nasemjournal.18.0_1