Thomas Ritzau is working as system administrator and programer (Free-lance) in the CAD area.
He wrote various articels about MicroStation and other themes.
Robert Warnke is working as a system administrator (Unix/Linux).
He published books about 3D Studio (Addison-Wesley) and is author of various articels about Linux and other themes.
«QEMU, Kernel-based Virtual Machine (KVM), Xen & libvirt»