Specification of Software Controlling a Discrete-Continuous Environment. - Viktor Friesen; Stefan Jähnichen; Matthias Weber 001 (ICSE, 1997)

Objektorientierte Spezifikation hybrider Systeme. - Viktor Friesen (Oldenbourg, 1997)

A Logic for the Specification of Continuous Systems. - Viktor Friesen (HSCC, 1998)

Object-Oriented Specification of Hybrid Systems Using UMLh and ZimOO. - Viktor Friesen; André Nordwig; Matthias Weber 001 (ZUM, 1998)

An access control concept for novel automotive HMI systems. - Simon Gansel; Stephan Schnitzer; Ahmad Gilbeau-Hammoud; Viktor Friesen; Frank Dürr; Kurt Rothermel; Christian Maihöfer (SACMAT, 2014)

Context-Aware Access Control in Novel Automotive HMI Systems. - Simon Gansel; Stephan Schnitzer; Ahmad Gilbeau-Hammoud; Viktor Friesen; Frank Dürr; Kurt Rothermel; Christian Maihöfer; Ulrich Krämer (ICISS, 2015)