000 00259nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aNature
260 _aMacmillan Magzine Ltd.
_bLondon
_c1 Sep-30 Sep,1996
362 _a383-383
_b6595-6598
942 _2ddc
_cJ
999 _c190979
_d190979