1. Associate Professor, Civil Engineering Dept., College of Engineering and Technology, Orissa Univ. of Agricultural and Technology, Bhubaneswar, Orissa, India—751 003.
2. Professor, Civil Engineering Dept., Indian Institute of Technology, Kharagpur, India—721302.
3. Lecturer, Applied Mechanics Dept., B.E. Coll. (Deemed Univ.), Howrah, W.B. India.