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@article{10_14708_dm_v5i01_6947, author = {Josette Adda}, title = {Obserwacja lekcji i paradoks obserwatora}, journal = {Didactica Mathematicae}, pages = { 49--66}, publisher = {mathdoc}, volume = {5}, number = {01}, year = {1985}, doi = {10.14708/dm.v5i01.6947}, language = {pl}, url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v5i01.6947/} }
Josette Adda. Obserwacja lekcji i paradoks obserwatora. Didactica Mathematicae, Tome 5 (1985) no. 01, pp. 49-66. doi : 10.14708/dm.v5i01.6947. http://geodesic.mathdoc.fr/articles/10.14708/dm.v5i01.6947/
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