Detecting some three-qubit MUB diagonal entangled states via nonlinear optimal entanglement witnessesM. A. Jafarizadeh, M. Mahdian, A. Heshmati and K. AghayarEur. Phys. J. D, 50 1 (2008) 107-121DOI: https://doi.org/10.1140/epjd/e2008-00200-6