TY  - GEN
AU  - United Nations Environment Programme
PY  - 2020
UR  - https://wedocs.unep.org/handle/20.500.11822/33588
LA  - English
KW  - ozone layer
KW  - hydrochlorofluorocarbon
KW  - refrigeration
KW  - chemical
KW  - Ozone
TI  - OzoNews Volume XX - 30 May 2020
M3  - Communication or other resource
ER  -