@Article{SCL-07_Griggs-Anderson-Lanzon,
 author       = "Griggs, W. M. and Anderson, B. D. O. and Lanzon, A.",
 title        = "A ``mixed'' small gain and passivity theorem in the frequency domain",
 journal      = "Systems and Control Letters",
 volume       = 56,
 number       = "9-10",
 pages        = "596-602",
 doi          = "10.1016/j.sysconle.2007.04.005",
 month        = sep,
 year         = 2007}