Ansorg, Marcus Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
cqg6_24_l01.pdf (Verlagsversion), 165KB
Ansorg, M., & Petroff, D. (2006). Negative Komar mass of single objects in regular, asymptotically flat spacetimes. Classical and Quantum Gravity, 23(24), L81-L87.