I.K.Robinson,USA

L.D.Marks,USA

R.V.Nandedkar,India

G.Materlik, UK

B.Voigtlaender,Germany

A.Roy, India

F. Aires, France

B.M.Arora, India

T. Chakraborty

S. M. Shivaprasad, India

J. Zegenhagen, France

W.M.Gibson, USA

R. Muralidharan, India

Y. Tawara, Japan

Ajay Gupta, India

J. Dalliant, France

S. M. Bhattacharjee, India

M. P. Das, Australia

T. P. Pareek, Germany