TY - JOUR TI - A nonparametric test for abnormal security-price performance in event studies AU - Charles J. Corrado JO - Journal of Financial Economics PY - 1989 VL - 23 IS - 2 DO - 10.1016/0304-405x(89)90064-0 UR - https://doi.org/10.1016/0304-405x(89)90064-0 ER -