Weck. K.H.; Wellßow, W.H.: Kostenreduzierung bei Netzkomponenten in Verteilungsnetzen - FGH-Ausspracheveranstaltung 1998 -. Elektrizitätswirtschaft 97 (1998), Heft 25, 8-13
Böse, C.; Sorg, A.; Wellssow, W.H.; Zdrallek, M.: Reliability of Different H-Type Substation Configurations. 11th International Conference on Power System Protection (PSP) (1998), Bled, Slowenien
Azarian, A.; Hügel, R.; Lambrecht, D.; Wellssow, W.H.: A Modelling Approach for Reliability Assessment of High Voltage Electric Power Systems. 11e Colloque National de Fiabilite & Maintenabilite (1998), Arcachon
Bretthauer, G.; Handschin, E.; Neumann, U.; Weber, T.; Wellssow, W.H.: New Approaches for Maintenance Management for Grid Facilities. International Conference on Large High Voltage Electric Systems (CIGRE), Bericht 23/37/39-01 (1998), Paris
Allan, R.; Dialynas, E.; Doan, T.; Gheury, J.; Lovas, G.; Panichelli, S.; Pelgrum, E.; Ravn, H.; Ringeissen, V.; Roggenbauer, M.; Roman, J.; Schilling, M.T.; Wellssow, W.: Sequential Probabilistic Methods for Power System Operation and Planning. Electra No. 179 (1998), pp. 69-99