TY  - RPRT
TI  - Treatment time analysis for extensive amalgam restorations.
AU  - P J Plasmans
AU  - M A van 't Hof
PY  - 1987
DO  - 10.1111/j.1600-0528.1987.tb00517.x
UR  - https://pubmed.ncbi.nlm.nih.gov/3476241/
ID  - 3476241
ER  -