TY - JOUR AU - G. PeƱafort-Sanchis TI - The Geometry of Double Fold Maps JO - Journal of Singularities PY - 2014 SP - 250 EP - 263 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5427/jsing.2014.10q/ DO - 10.5427/jsing.2014.10q ID - 10_5427_jsing_2014_10q ER -