@article{1102634615,
author = {Martin, G. K. and Thompson, G.},
title = {Nonuniqueness of the metric in Lorentzian manifolds.},
journal = {Pacific J. Math.},
volume = {161},
number = {2},
year = {1993},
pages = { 177-187},
language = {en},
url = {http://dml.mathdoc.fr/item/1102634615}
}
Martin, G. K.; Thompson, G. Nonuniqueness of the metric in Lorentzian manifolds.. Pacific J. Math., Tome 161 (1993) no. 2, pp. 177-187. http://gdmltest.u-ga.fr/item/1102634615/