496 



jmnigruuh 4 of that Article stating in each cuse the date on 



which liie nresent (convention has been or will cease to be 



so extended; 



(b) transmit certified true copies of the present Convention to 



all Signatory States and to all States which accede to the present 



Convention. 



Article XX 



As soon as the present Convention comes into force, the text shall 

 be transmitted by the Secretary-General of the Organization to the 

 Secretariat of the United Nations for registration and piiblication in 

 accordance with Article 102 of the Charter of the United Nations. 



Article XXI 



The j)resent Convention is established in a single copy in the 

 Englisli and French languages, both texts being equally authentic. 

 Official translations in the Russian and Spanish languages shall be 

 j)repared and deposited with the signed original. 



In witness whereof the undersigned being dulj authorized by 

 I heir respective Governments for that purpose have signed the present 

 Convention. 



Done at Brussels this twenty-ninth day of November 1969. 



