Dragan Simic Ilija Tanackov Vladeta Gajic Svetlana Simic Financial Forecasting of Invoicing and Cash Inflow Processes for Fair Exhibitions. 686-693 2009 HAIS http://dx.doi.org/10.1007/978-3-642-02319-4_83 conf/hais/2009 db/conf/hais/hais2009.html#SimicTGS09