Rank |
2003
Impact Factor |
Impact
2000-04 |
Impact
1981-2004 |
1 |
Nature
(30.98) |
Nature
(50.99) |
Nature
(138.97) |
2 |
Science
(29.16) |
Science
(50.13) |
Science
(138.57) |
3 |
PNAS
(10.27) |
PNAS
(19.11) |
PNAS
(72.73) |
4 |
IBM J. Res.
Devel.
(3.61) |
IBM J. Res.
Devel.
(5.07) |
IBM J. Res.
Devel.
(12.39) |
5 |
Scientific American
(3.28) |
Annals NY Acad.
Sci.
(4.04) |
Experientia
(12.25) |
6 |
Annals NY Acad.
Sci.
(1.89) |
Naturwissenschaften
(3.67) |
American Scientist
(11.54) |
7 |
Naturwissenschaften
(1.88) |
Compt. Rend. Ser. III
(2.90) |
Scientific American
(9.71) |
8 |
Pr. Roy. Soc. London
(1.21) |
A J. Roy. Soc. New Zeal.
(2.24) |
Annals NY Acad.
Sci.
(8.37) |
9 |
Philos. Tr. Roy. Soc. A
(1.12) |
Scientific American
(2.20) |
Naturwissenschaften
(8.32) |
10 |
American Scientist
(1.10) |
Int. J.
Bifurc. Chaos
(2.05) |
Pr. Roy. Soc.
Edin. B
(7.46) |