TY - RPRT TI - Measured trends in stratospheric ozone AU - Stolarski, Richard AU - Bojkov, Rumen AU - Bishop, Lane AU - Zerefos, Christos AU - Staehelin, Johannes AU - Zawodny, Joseph PY - 1992 UR - https://ntrs.nasa.gov/citations/19920052898 ID - 19920052898 ER -