Index of /science/science magazine 1991-1992/root/data/Science 1991-1992/pdf/1991_v251_n4989/
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p4989_0000a.pdf 23-Oct-2007 11:44 10717263
p4989_0009.pdf 23-Oct-2007 11:45 53619
p4989_0010.pdf 13-Mar-2008 14:44 586460
p4989_0013.pdf 23-Oct-2007 11:47 191842
p4989_0013a.pdf 23-Oct-2007 11:47 191842
p4989_0013b.pdf 23-Oct-2007 11:48 191842
p4989_0019.pdf 23-Oct-2007 11:49 1769962
p4989_0023.pdf 23-Oct-2007 11:50 250391
p4989_0024.pdf 23-Oct-2007 11:50 49042
p4989_0025.pdf 23-Oct-2007 11:51 229598
p4989_0025a.pdf 23-Oct-2007 11:51 97703
p4989_0026.pdf 23-Oct-2007 11:51 263739
p4989_0027.pdf 23-Oct-2007 11:51 338717
p4989_0027a.pdf 23-Oct-2007 11:52 81628
p4989_0027b.pdf 23-Oct-2007 11:52 81628
p4989_0028.pdf 13-Mar-2008 14:44 3079672
p4989_0030.pdf 23-Oct-2007 11:54 350693
p4989_0031.pdf 23-Oct-2007 11:54 388317
p4989_0033.pdf 23-Oct-2007 11:55 240077
p4989_0039.pdf 13-Mar-2008 14:44 1382443
p4989_0046.pdf 23-Oct-2007 12:01 1120502
p4989_0053.pdf 23-Oct-2007 12:03 1213257
p4989_0060.pdf 23-Oct-2007 12:06 898900
p4989_0067.pdf 23-Oct-2007 12:07 821546
p4989_0070.pdf 13-Mar-2008 14:44 382871
p4989_0072.pdf 13-Mar-2008 14:44 905433
p4989_0075.pdf 23-Oct-2007 12:11 382285
p4989_0078.pdf 23-Oct-2007 12:13 611772
p4989_0081.pdf 23-Oct-2007 12:15 945836
p4989_0085.pdf 23-Oct-2007 12:17 579661
p4989_0087.pdf 23-Oct-2007 12:18 672583
p4989_0090.pdf 20-Oct-2007 12:01 453696
p4989_0094.pdf 23-Oct-2007 12:19 214654
p4989_0096.pdf 23-Oct-2007 12:20 206289
p4989_0097.pdf 23-Oct-2007 12:20 110620
p4989_0098.pdf 23-Oct-2007 12:21 67691
p4989_0098a.pdf 23-Oct-2007 12:21 67691
p4989_0098b.pdf 13-Mar-2008 14:44 7093945