TY  - JOUR
AU  - Benford, Gregory
TI  - Caveat time traveller
JA  - Nature
PY  - 2009/04/02/print
VL  - 458
IS  - 7238
SP  - 668
EP  - 668
PB  - Nature Publishing Group
SN  - 0028-0836
UR  - http://dx.doi.org/10.1038/458668a
M3  - 10.1038/458668a
N1  - 10.1038/458668a
ER  -