TY  - RPRT
TI  - A three-cornered solution.
AU  - P Egan
PY  - 1989
DO  - 10.5694/j.1326-5377.1989.tb128452.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2770589/
ID  - 2770589
ER  -