Business intelligence : theory and practice : [zborník]. Scientific editorial Štefan Čarnický, Kazimierz W. Krupa, Pavlo Skotnyy. Rzeszow : Faculty of Economy University of Rzeszow ; Košice : The Faculty of Business Economics Košice, 2011. 486 s. VEGA 1/0350/10, N N115 408840. ISBN 978-83-7338-692-1.