9Havrylyshyn O. , L. Pritchett. European Trade Pattems after the Transition [ Z ]. Folicy, Research and External Affairs Working Paper Series, 1991 ,No. 74.
10Hutchinson W K. Does Ease of Communication Increase Trade? [ J]. Commonality of Language and Bilateral Trade, Scott J Polit Econ,2002,49 (5).
