Yuan, H. Q., Grosche, F. M., Deppe, M., Sparn, G., Geibel, C., & Steglich, F. (2006). Non-Fermi Liquid States in the Pressurized CeCu2(Si1-xGex)2 System: Two Critical Points. Physical Review Letters, 96(4): 047008, pp. 047008-1-047008-4. doi:10.1103/PhysRevLett.96.047008.