Prasad, A., Jeevan, H. S., Geibel, C., & Hossain, Z. (2010). Suppression of quadrupolar order on Si doping in YbRu2(Ge1-xSix)2. Journal of Physics: Condensed Matter, 22(12): 126004, pp. 126004-1-126004-4. doi:10.1088/0953-8984/22/12/126004.