TY - JOUR AU - Barbara BaraƄska TI - Phenomenology of mathematical concepts: a historical perspective on curves and tangents JO - Didactica Mathematicae PY - 2023 SP - 111 EP - 156 VL - 45 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/dm.v45i0.7289/ DO - 10.14708/dm.v45i0.7289 LA - pl ID - 10_14708_dm_v45i0_7289 ER -