TY  - JOUR
AU  - Enrique Del Castillo
TI  - Run Length Distributions and Economic Design of X Charts with Unknown Process Variance.
JO  - Metrika
PY  - 1996
SP  - 189
EP  - 202
VL  - 43
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MET_1996__43_3_176650/
ID  - MET_1996__43_3_176650
ER  -