General Relativity and Gravitation
General Relativity and Gravitation > 2001 > 33 > 6 > 1041-1046
General Relativity and Gravitation > 2001 > 33 > 7 > 1207-1235
General Relativity and Gravitation > 2001 > 33 > 6 > 1041-1046
General Relativity and Gravitation > 2001 > 33 > 7 > 1207-1235