@article{10_14708_dm_v44i1_7181,
     author = {Marta Saccoletto and Camilla Spagnolo},
     title = {Students{\textquoteright} perceived difficulty of mathematical tasks: an investigation on influencing factors},
     journal = {Didactica Mathematicae},
     pages = { 59--79},
     publisher = {mathdoc},
     volume = {44},
     year = {2022},
     doi = {10.14708/dm.v44i1.7181},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/dm.v44i1.7181/}
}