Entanglement dephasing of spatially separated multiparticle GHZ states coupled to a squeezed environmentShao-Hua Xiang, Shun-Ru Zhang and Ke-Hui SongEur. Phys. J. D, 68 10 (2014) 294DOI: https://doi.org/10.1140/epjd/e2014-50418-6