TY  - RPRT
TI  - [Quality assurance--quality management--certification].
AU  - H Siebert
AU  - J Sturm
PY  - 1999
DO  - 10.1007/s001130050501
UR  - https://pubmed.ncbi.nlm.nih.gov/10551940/
ID  - 10551940
ER  -