TY  - RPRT
TI  - Cavo-surface angles, amalgam margin angles and occlusal cavity preparations.
AU  - R J Elderton
PY  - 1984
DO  - 10.1038/sj.bdj.4805354
UR  - https://pubmed.ncbi.nlm.nih.gov/6587899/
ID  - 6587899
ER  -