Stern-Gerlach entanglement in spinor Bose-Einstein condensates S. Cruz-Barrios, M. C. Nemes and A. F. R. de Toledo Piza Europhys. Lett., 61 2 (2003) 148-154 Published online: 01 January 2003 DOI: 10.1209/epl/i2003-00200-6