TY  - RPRT
TI  - Class II composites: Part I.
AU  - E J Swift
PY  - 2001
DO  - 10.1111/j.1708-8240.2001.tb00272.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11572510/
ID  - 11572510
ER  -