This article refers to:
Michael Tkacik: Chinese Nuclear Weapons Enhancements – Implications for Chinese Employment Policy Defence Studies, 14(02), pp. 161 -191.
http://dx.doi.org/10.1080/14702436.2014.889471
When the above article was published online and in print, the P-5 was erroneously referred to on page 162 as ‘permanent nuclear powers’. This should have been ‘permanent members of the UN Security Council.’