Prof D Aubry, France Dr K Baba, Japan A Bozovic, Yugoslavia Prof A K Chopra, USA Prof R W Clough, USA W S Croucamp, South Africa Prof M Fanelli, Italy Prof W D L Finn, Canada Prof J F Hall, USA Prof K Ishihara, Japan Dr G Lombardi, Switzerland Dr D Naylor, UK Dr W Pircher, Austria Prof V E Saouma, USA Prof J Laginha Serafim, Portugal Prof R T Severn, UK Prof Shen Chonggang, China B Tardieu, Fra...
