TY  - RPRT
TI  - [Comparative studies on different full and veneer-ceramic crowns].
AU  - E J Richter
AU  - K Bieniek
AU  - H Küpper
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2639007/
ID  - 2639007
ER  -