TY  - RPRT
TI  - New compounds: Steroidal spiroethers.
AU  - B Singh
AU  - R G Christiansen
PY  - 1971
DO  - 10.1002/jps.2600600340
UR  - https://pubmed.ncbi.nlm.nih.gov/5572141/
ID  - 5572141
ER  -