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Handbook of The Vienna Convention for the Protection of the Ozone Layer
… � � � � � � � � � � � � � � � � � � � � � � � � � � � � 11 Annex I: Research and systematic observations�� � � � � � � � … � � � � � � � � � � � � � � � � � � � � � � � � � � � �12 Annex II: Information exchange�� � � � � � � � � � � � � � � … layer and other relevant parameters, as elaborated in annex I. 3. The Parties undertake to co-operate, directly or …