@article{KYB_1991__27_1_a1,
     author = {Ionescu, Vlad and R\u{a}svan, Vladimir},
     title = {The nonlinear regulator problem for constant signals},
     journal = {Kybernetika},
     pages = {12--22},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1991},
     mrnumber = {1099511},
     zbl = {0727.93027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1991__27_1_a1/}
}