TY  - RPRT
TI  - A classification of precision attachments.
AU  - G Becerra
AU  - M MacEntee
PY  - 1987
DO  - 10.1016/0022-3913(87)90049-7
UR  - https://pubmed.ncbi.nlm.nih.gov/3305898/
ID  - 3305898
ER  -