TY - JOUR AU - Poetrodjojo, S. AU - Abdollahian, M. A. AU - Debnath, Narayan C. TI - Optimal Cusum schemes for monitoring variability. JO - International Journal of Mathematics and Mathematical Sciences PY - 2002 SP - 1 VL - 32 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.1155/S0161171202202239/ DO - 10.1155/S0161171202202239 LA - en ID - 10_1155_S0161171202202239 ER -