@article{OsakaHiroshi:1962-05-25,
author="Osaka, Hiroshi",
title="On Steroidal Sapogenins. V. Synthesis of 11-Oxygenated Spirostanes. (3).",
journal="Chemical & pharmaceutical bulletin",
ISSN="00092363",
publisher="The Pharmaceutical Society of Japan",
year="1962",
month="may",
volume="10",
number="5",
pages="404-412",
URL="http://ci.nii.ac.jp/naid/110003618872/en/",
DOI="",
}