central direction with this edit diff user n hh removed referenced assertion about this policy being formulated by the central committee of cpy this removal was justified with the following comment in the edit line removing some apparent commentary and unverified assertion about extent of central direction there are many sources presented in the article that the policy of leftist errors was formulated and pursued under central direction of politburo ck of cpy it is true that politburo condemned this policy at the end of but that does not mean that it had nothing to do with it as per explanation of banac quoted above unless nobody presents reliable sources that yugoslav politburo had nothing to do with this policy the removed assertion should be returned to the text of the article