Analyzing Maintenance Collaboration in Multiple Overlapping SAP Instances. - Thomas R. Gulledge; Rainer A. Sommer; Mathias Kirchmer; Georg Simon (APMS, 2002)

The US Navy enterprise resource planning architecture. - Thomas R. Gulledge; Rainer A. Sommer; Georg Simon (Electron. Gov. an Int. J., 2004)

Analyzing convergence alternatives across existing SAP solutions. - Thomas R. Gulledge; Rainer A. Sommer; Georg Simon (Ind. Manag. Data Syst., 2004)

Aligning mySAP.com with the future logistics enterprise. - Thomas R. Gulledge; Phil Hayes; Alexander Lotterer; Georg Simon (J. Enterp. Inf. Manag., 2004)

The evolution of SAP implementation environments: A case study from a complex public sector project. - Thomas R. Gulledge; Georg Simon (Ind. Manag. Data Syst., 2005)