000 00349nam a2200145Ia 4500
008 180611s9999||||xx |||||||||||||| ||und||
020 _a0-85498-375-9
041 _aen
082 _a530.072
100 _aPRUTTON,M.
245 0 _aReports on Progresss in Physics vol.50, part3, 1987
260 _aLondon
_bIOP
_c1988
300 _a723p.
942 _cLL
999 _c8461
_d8461