1. Vibration Engineering;Dimarogonas,1976
2. Dynamic response of cracked beams;Chondros;M.Sc. Thesis, University of Patras, Greece,1977
3. Identification of cracks in welded joints of complex structures;Chondros;Journal of Sound and Vibration,1980
4. Identification of cracks in circular plates welded at the contour;Chondros,1979
5. Defect location in structures by a vibration technique;Cawley,1979