• Development of the theory and methods of complex optimisation of the control and operational reliability of the interconnections of power systems (IPS) on the interstate level in free market conditionsKrumm, Lembit; Kurrel, Ü.; Terno, OlafInternational Conference on Operational Research : Simulation and Optimisation in Business and Industry : May 17-20, 2006, Tallinn, Estonia2006 / p. 178-182