TY  - JOUR
A1  - Hewitt, D.
A1  - Milner, J.
A1  - Csima, A.
A1  - Pakula, A.
T1  - On Edwards’ criterion of seasonality and a non-parametric alternative
Y1  - 1971
DO  - 10.1136/jech.25.3.174
VL  - 25
IS  - 3

ER  -