Mats Lind
Faxen Laboratory Royal Institute of Technology S-100 44 Stockholm Sweden
Noam Lior
Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA, USA
Fritz H. Bark
FaxenLaboratoriet, Kungl. Tekniska Hogskolan 100 44 Stockholm, Sweden
Farid Alavyoon
Vattenfall Utveckling AB S-810 70 Alvkarleby Sweden