N. 130-131 , June-September

F. Scerbo and A. Mazzotti

V. V. Beloussov

R. Barzaghi, M. Brovelli and P. Knudsen

B. Duka and S. Bushati

V. Graber-Brunner, E. Klingelé; and I. Marson

R. Di Maio and D. Patella

A. Del Ben, I. Finetti, A. Rebez and D. Slejko

I. Stanishkova and D. Slejko

A. Rebez and G. Renner

M.T. Carrozzo, P. Colella, F. Mosetti and T. Quarta

C. Ebblin