@article{article064742a0,
title   = {New mathematical framework for spherical gravitational collapse},
author = {Giambó, Roberto and Giannoni, Fabio and Magli, Giulio and Piccione, Paolo},
year = {2003},
doi = {10.1088/0264-9381/20/6/102},
journal   = {Classical and Quantum Gravity}
}