TY - JOUR AU - Moonens, Laurent TI - Nonconstant Continuous Functions whose Tangential Derivative Vanishes along a Smooth Curve JO - Canadian mathematical bulletin PY - 2011 SP - 706 EP - 715 VL - 54 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2011-027-1/ DO - 10.4153/CMB-2011-027-1 ID - 10_4153_CMB_2011_027_1 ER -