STEROID COMPOUNDS. PART VII . SOME OBSERVATIONS ON THE  COPE-KNOEVENAGEL CONDENSATION OF ETHYL CYANOACETATE  WITH ETHYL 2-METHYL-2β-CARBETHOXYETHYlcycloPENTA-  NONE AND THE STEREOCHEMISTRY OF THE  REDUCTION PRODUCT
Zenodo (CERN European Organization for Nuclear Research)