178 



2. Thereafter this Convention shall enter into force for each Con- 

 tracting Party four months after the day of its signature without 

 reservation as to ratification, or its deposit of an instrument of rati- 

 fication or accession. 



Article 11 



1. This Convention shall continue in force for an indefinite period. 



2. Any Contracting Party may denounce this Convention after a 

 period of five years from the date on which it entered into force for 

 that Party by giving written notice thereof to the Depository. De- 

 nunciation shall take effect four months after the day on which notice 

 thereof is received by the Depository. 



Article 12 



1. The Depository shall inform all States that have signed and 

 acceded to this Convention as soon as possible of: 



(a) signatures to this Convention; 



(b) deposits of instruments of ratification of this Convention; 



(c) deposits of instruments of accession to this Convention; 



(d) the date of entry into force of this Convention; 



(e) notifications of denunciation of this Convention. 



2. When this Convention has entered into force, the Depository 

 shall have it registered with the Secretariat of the United Nations in 

 accordance with Article 102 of the Charter. 



In Witness Whereof, the undersigned, being duly authorized to 

 that effect, have signed this Convention. 



Done at this day of 



19 , in a single original in the English, French, German and 



Russian languages, in any case of divergency the English text pre- 

 vailing, which shall be deposited with the Depository which shall 

 send true copies thereof to all Contracting Parties. 



