000 00259nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aNature
260 _aMacmillan Magzine Ltd.
_bLondon
_c1 Jun-30 Jun,1999
362 _a399-399
_b6735-6738
942 _2ddc
_cJ
999 _c188028
_d188028