000			00366nam a2200145Ia 4500
008			180611s9999||||xx |||||||||||||| ||und||
020			_a0-85498-377-5
041			_aen
082			_a530.072
100			_aPRUTTON, M.edi
245		0	_aReports on Progress in Physics
260			_aLondon _bThe Institute of Physics _c1986
300			_a1386p. Vol - 49
942			_cLL
999			_c8458 _d8458