TY - JOUR AU - Libgober, A. TI - Theta characteristics on singular curves, spin structures and Rohlin theorem JO - Annales scientifiques de l'École Normale Supérieure PY - 1988 SP - 623 EP - 635 VL - 21 IS - 4 PB - Elsevier UR - http://archive.numdam.org/articles/10.24033/asens.1570/ DO - 10.24033/asens.1570 LA - en ID - ASENS_1988_4_21_4_623_0 ER -