TY - BOOK ID - 134591562 TI - Assessing the risks of trace gases that can modify the stratosphere AU - Hoffman, John S. AU - United States. PY - 1987 PB - Washington, D.C. : Office of Air and Radiation, U.S. Environmental Protection Agency, DB - UniCat KW - Stratosphere. KW - Atmospheric radiation. KW - Ozone layer depletion. UR - https://www.unicat.be/uniCat?func=search&query=sysid:134591562 AB - ER -