TY  - RPRT
TI  - Filler particle size and composite resin classification systems.
AU  - B R Lang
AU  - M Jaarda
AU  - R F Wang
PY  - 1992
DO  - 10.1111/j.1365-2842.1992.tb01487.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1469493/
ID  - 1469493
ER  -