Provider: Nature Publishing Group
Content: application/x-research-info-systems
TY  - JOUR
AU  - Bojowald, Martin
TI  - What happened before the Big Bang?
JA  - Nat Phys
PY  - 2007/08//print
VL  - 3
IS  - 8
SP  - 523
EP  - 525
SN  - 1745-2473
UR  - http://dx.doi.org/10.1038/nphys654
M3  - 10.1038/nphys654
N1  - 10.1038/nphys654
ER  -