TY  - RPRT
TI  - Models, standards, guidelines.
AU  - Frank D Ferris
AU  - S Lawrence Librach
PY  - 2005
DO  - 10.1016/j.cger.2004.08.002
UR  - https://pubmed.ncbi.nlm.nih.gov/15639035/
ID  - 15639035
ER  -