@Article{ Batle-_Casas-_Plastino-_PLASTINO:161-165,

author = { J Batle- and M Casas- and A. Plastino- and ANGEL RICARDO PLASTINO } ,

title = { Metrics, entanglement, and mixedness in the space of two-qubits },

journal = { Physics Letters A },

year = { 2006 },

volume = { 353 },

pages = { 161-165 },

}