1. M.Sc., PhD student Tampere University , Civil Engineering , P.O. Box 600, 33014 Tampere , Finland
2. D.Sc., Adjunct Professor, Tampere University , Civil Engineering P.O. Box 600, 33014 Tampere , Finland
3. M.Sc., Tampere University , Civil Engineering P.O. Box 600, 33014 Tampere , Finland