Letter dated 16 January 2012 from the Secretary-General addressed to the Chair-designate of the first session of the Preparatory Committee for the 2015 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons Treaty on the Non-Proliferation of Nuclear Weapons - Preparatory Committee for the Ninth Review Conference First session (2012) Secretary-General Correspondence 2012-04-29 NPT/CONF.2015/PC.I/1 EN
Letter dated 17 February 2012 from the Secretary-General addressed to the Chair-designate of the first session of the Preparatory Committee for the 2015 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons Treaty on the Non-Proliferation of Nuclear Weapons - Preparatory Committee for the Ninth Review Conference First session (2012) Secretary-General Correspondence 2012-04-29 NPT/CONF.2015/PC.I/2 EN
