Raczkowski, Konrad ; Schneider, Friedrich
F. Schneider, K. Raczkowski, Size and development of the shadow economy and of tax evasion within Poland and of its neighbouring countries from 2003 to 2013: some new facts, [in:] K. Raczkowski, F. Schneider (ed.), The Economic Security of Business Transactions. Management in Business, Chartridge Books Oxford, Oxford 2013, ss. 3-31..  , 2013