%0 Journal Article
%T Time Gravity and Quantum Mechanics
%A W. G. Unruh
%J Physics
%D 1993
%I arXiv
%X Time plays different roles in quantum mechanics and gravity. These roles are examined and the problems that the conflict in the roles presents for quantum gravity are briefly summarised.
%U http://arxiv.org/abs/gr-qc/9312027v2