@article{articleb7c043ea,
title   = {Coherent states of systems with quadratic hamiltonians},
author = {Bagrov, V. G. and Pereira, Alcides Silva and Gitman, Dmitri Maximovitch},
year = {2015},
doi = {10.1007/s13538-015-0309-z},
journal   = {BRAZILIAN JOURNAL OF PHYSICS}
}