The use of information technology by managers of corporations in Greece to support decision making. - George E. Vlahos; Thomas W. Ferratt (SIGCPR, 1992)

Information technology use by managers in Greece to support decision making: Amount, perceived value, and satisfaction. - George E. Vlahos; Thomas W. Ferratt (Inf. Manag., 1995)

A comparative study between managers of corporations in Greece and the U.S. regarding their use and perceived value of computer-based information systems in supporting decision making. - George E. Vlahos; Thomas W. Ferratt (SIGCPR, 1996)

Use and perceived value of computer-based information systems in supporting the decision making of German managers. - George E. Vlahos; Thomas W. Ferratt; Georg Knoepfle (SIGCPR, 2000)

The use of computer-based information systems by German managers to support decision making. - George E. Vlahos; Thomas W. Ferratt; Georg Knoepfle (Inf. Manag., 2004)