@article{AM2_1971__6_136169,
     author = {F. NEUMAN},
     title = {A {Role} of {Abel's} {Equation} in the {Stabitity} {Theory} of {Differential} {Equations}},
     journal = {Aequationes mathematicae},
     pages = {66--70},
     publisher = {mathdoc},
     volume = {6},
     year = {1971},
     zbl = {0215.43803},
     url = {http://geodesic.mathdoc.fr/item/AM2_1971__6_136169/}
}