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United Nations[The Secretary-General - Message on the International Day for the Preservation of the Ozone Layer, 16 September 2018]The Secretary-General - Message on the International Day for the Preservation of the Ozone Layer, 16 September 2018

United Nations Environment Programme[Soğutucu Akışkan Karışımlarının KIP Değerleri: Kigali Bağlamı - OzonAction Kigali Bilgi Notu 16][OzonAction Kigali Fact Sheet 16: GWPs of Refrigerant Mixtures; Kigali Context]OzonAction Kigali Fact Sheet 16: GWPs of Refrigerant Mixtures; Kigali Context

United Nations[保护臭氧层国际日致辞 “庆祝《蒙特利尔议定书》三十周年”, MESSAGE À L’OCCASION DE LA JOURNÉE INTERNATIONALE DE LA PROTECTION DE LA COUCHE D’OZONE MARQUANT LE TRENTIÈME ANNIVERSAIRE DU PROTOCOLE DE MONTRÉAL, ПОСЛАНИЕ ПО СЛУЧАЮ 30-Й ГОДОВЩИНЫ МОНРЕАЛЬСКОГО ПРОТОКОЛА, Mensaje en el Día Internacional de la Preservación de la Capa de Ozono con motivo del 30º aniversario del Protocolo de Montreal, الاحتفال بالذكرى السنوية الثلاثين لبروتوكول مونتريال“ رسالة بمناسبة اليوم الدولي لحفظ طبقة الأوزون][Message on the International Day for the Preservation of the Ozone Layer "Marking the 30th Anniversary of the Montreal Protocol" - 16 September 2017]Message on the International Day for the Preservation of the Ozone Layer "Marking the 30th Anniversary of the Montreal Protocol" - 16 September 2017

United Nations Environment Programme[Tirana meeting on implementation of HCFC phase-out management plans and HFC phase-down initiatives under the Kigali Amendment]Tirana meeting on implementation of HCFC phase-out management plans and HFC phase-down initiatives under the Kigali Amendment

United Nations Environment Programme[OzoNews VolXVII - 16 September 2017: Special Montreal Protocol 30th Anniversary Ozone-Day issue]OzoNews VolXVII - 16 September 2017: Special Montreal Protocol 30th Anniversary Ozone-Day issue

National Ozone Unit, Pollution Control Department, Ministry of Natural Resources and Environment of Lao PDR[World Ozone Day and 30 years of Montreal Protocol 2017 - 16 September 2017]World Ozone Day and 30 years of Montreal Protocol 2017 - 16 September 2017

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