@article{articlea8280dee,
title   = {A general treatment of geometric phases and dynamical invariants},
author = {Duzzioni, E. I. and Serra, R. M. and Moussa, Miled Hassan Youssef},
year = {2008},
doi = {10.1209/0295-5075/82/20007},
journal   = {Europhysics Letters}
}