@ARTICLE {3506,
author={N. Paunkovic and P.D. Sacramento and P. Nogueira and V. Vieira and V. K.  Dugaev},
doi={10.1103/PhysRevA.77.052302},
journal={Physical Review A - Atomic, Molecular, and Optical Physics},
title={Fidelity between partial states as signature of quantum phase transitions},
year={2008},
month={January},
volume={77},
number={-},
pages={052302-052302},
ISSN={1050-2947}
}