PLASMA TEMPERATURE IN OPTICAL-FIELD IONIZATION OF GASES BY INTENSE ULTRASHORT PULSES OF ULTRAVIOLET-RADIATION - BLYTH, WJ; PRESTON, SG; OFFENBERGER, AA; KEY, MH; WARK, JS; NAJMUDIN, Z; MODENA, A; DJAOUI, A; DANGOR, AE (PHYSICAL REVIEW LETTERS, 1995)