%0 Journal Article %A Poetrodjojo, S. %A Abdollahian, M. A. %A Debnath, Narayan C. %T Optimal Cusum schemes for monitoring variability. %J International Journal of Mathematics and Mathematical Sciences %D 2002 %P 1 %V 32 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.1155/S0161171202202239/ %R 10.1155/S0161171202202239 %G en %F 10_1155_S0161171202202239