8.3 Words mx
Nature User
7.6 ARTI BLACK HOLES mx
5.9 news feat cosmic rays mx
4.7 visual it mx
4.10 NnV mx
30.10 books 901
29.11 books mx NEW Statement
27.3 News 877_878 cds
27.3 Books cds
24.1 concepts mx
20.2 News Feat Nuclear Waste cd
19.4 N&V.CDS
18.10 words mx
17.1 concepts mx
1.5 N&V cds
1.11 compu astro mx
1.1 N&V 19 MH