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This Convention shall not affect the operation of other conventions to which one or several Contracting States are or may in the future become Parties and which contain provisions relating to the subject-matter of this Convention.
Contracting States, however, should refrain from concluding other conventions on the same matters incompatible with the terms of this Convention, unless for special reasons based on regional or other ties; and, notwithstanding the terms of such conventions, they undertake to recognize in accordance with this Convention divorces and legal separations granted in Contracting States which are not Parties to such other Conventions.