TY - JOUR A1 - Goodman, L.A. A1 - Grunfeld, Y. T1 - Some nonparametric tests for comovements between time series Y1 - 1961 DO - 10.1080/01621459.1961.10482086 JF - Journal of the American Statistical Association VL - 56 IS - 293 SP - 11 EP - -26 ER -