@article{10_14708_dm_v43i1_7115,
     author = {Yewon Sung and Ana Stephen and Eric Knuth and Maria Blanton and Angela Murphy Gardiner and Rena Stroud},
     title = {Positive {Emotions} in {Early} {Algebra} {Meaning-Making}},
     journal = {Didactica Mathematicae},
     pages = { 31--59},
     publisher = {mathdoc},
     volume = {43},
     year = {2021},
     doi = {10.14708/dm.v43i1.7115},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v43i1.7115/}
}