TY - RPRT TI - Internal quality control system for non-stationary, non-ergodic analytical processes based upon exponentially weighted estimation of process means and process standard deviation. AU - Rob T P Jansen AU - Mark Laeven AU - Wim Kardol PY - 2002 DO - 10.1515/cclm.2002.107 UR - https://pubmed.ncbi.nlm.nih.gov/12211659/ ID - 12211659 ER -