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@article{SMJ2_2008_34_1_a5, author = {Bachelot, Alain}, title = {Global {Waves} with {Non-Positive} {Energy} in {General} {Relativity}}, journal = {Serdica Mathematical Journal}, pages = {127--154}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {2008}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SMJ2_2008_34_1_a5/} }
Bachelot, Alain. Global Waves with Non-Positive Energy in General Relativity. Serdica Mathematical Journal, Tome 34 (2008) no. 1, pp. 127-154. http://geodesic.mathdoc.fr/item/SMJ2_2008_34_1_a5/