Refernces on this article Today I fixed two broken ref links on this article however one other ref link appears to be broken and I am unable to source the new page for that content See reference 6 Topic Overview in Chinese Centre of China s Borderland History and Geography Research CASS 2007 07 04 Retrieved 2009 07 28 In addition several references point to Korea or Chinese language websites without translation As per WP NONENG an English translation of the relevant section of the source should be included in the reference