... LU. method for the L.B.W. efficiency evaluation on different steels and alloys -- G. ... ... Schall (Germany) 163 -- Unstable multi-pass resonator for ten-kW-class nitrogen-based supersonic COIL ... ... Sliwinski (Poland) 181 -- Optimization of laser microdrilling in heat resisting alloys -- M. V. ... ... Filev (Russia) 193 -- Modelling of C02 laser welding of a magnesium alloy -- K. ... ... Autric (France) 194 -- Study of laser damage assesment in some important alloys -- N. R. Das, D. ...