@article{MZ_1960__73_169831,
     author = {James C. Lillo},
     title = {Continuous {Matrices} and the {Stability} {Theory} of {Differential} {Systems.}},
     journal = {Mathematische Zeitschrift},
     pages = {45--58},
     publisher = {mathdoc},
     volume = {73},
     year = {1960},
     zbl = {0104.05801},
     url = {http://geodesic.mathdoc.fr/item/MZ_1960__73_169831/}
}