TY - JOUR AU - CURRÁS-BOSCH, CARLOS TI - SINGULAR COTANGENT MODEL JO - Glasgow mathematical journal PY - 2015 SP - 415 EP - 430 VL - 57 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.1017/S001708951400038X/ DO - 10.1017/S001708951400038X ID - 10_1017_S001708951400038X ER -