TY - JOUR AU - Atsufumi Honda TI - Duality of singularities for flat surfaces in Euclidean space JO - Journal of Singularities PY - 2020 SP - 132 EP - 148 VL - 21 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5427/jsing.2020.21h/ DO - 10.5427/jsing.2020.21h ID - 10_5427_jsing_2020_21h ER -