@article{MABA_1992_6_4_a9,
     author = {Dimitar P. Tsvetkov},
     title = {Asymptotic {Bifurcation} in {Systems} for {Control} with {Delay}},
     journal = {Mathematica balkanica},
     pages = {375},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1992},
     url = {http://geodesic.mathdoc.fr/item/MABA_1992_6_4_a9/}
}