@article{CC_2004_33_1_a4,
     author = {Wang, Long},
     title = {Robust performance of a class of control systems},
     journal = {Control and Cybernetics},
     pages = {71--83},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {2004},
     zbl = {1122.93064},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2004_33_1_a4/}
}