TY - JOUR TI - On the coherence of expected shortfall AU - Carlo Acerbi AU - Dirk Tasche JO - Journal of Banking & Finance PY - 2002 VL - 26 IS - 7 DO - 10.1016/s0378-4266(02)00283-2 UR - https://doi.org/10.1016/s0378-4266(02)00283-2 ER -