C. Schmitz, A. Hotho, R. Jäschke, and G. Stumme. LWA, volume 1/2006 of Hildesheimer Informatik-Berichte, page 221-228. University of Hildesheim, Institute of Computer Science, (2006)
B. Hoser, A. Hotho, R. Jäschke, C. Schmitz, and G. Stumme. LWA, volume 1/2006 of Hildesheimer Informatik-Berichte, page 297-305. University of Hildesheim, Institute of Computer Science, (2006)
A. Hotho, R. Jäschke, C. Schmitz, and G. Stumme. LWA, volume 1/2006 of Hildesheimer Informatik-Berichte, page 111-114. University of Hildesheim, Institute of Computer Science, (2006)