Passivity analysis and control of nonlinear oscillations in systems with cubic nonlinearities. - Dag Kristiansen; Olav Egeland (ECC, 1999)

Time and spatial discretization methods that preserve passivity properties for systems described by partial differential equations. - Dag Kristiansen; Olav Egeland (ACC, 2000)

A Framework for Automatic Testing of Industrial Controller Code. - Dag Kristiansen; Karl-Petter Lindegaard (Software Engineering Research and Practice, 2006)