@article{MM2_1980__31_154705,
     author = {Klaus Doden},
     title = {Stability and {Non-Linear} {Approximation} for y' (t) = - f(y(t-1)).},
     journal = {Manuscripta mathematica},
     pages = {249--268},
     publisher = {mathdoc},
     volume = {31},
     year = {1980},
     zbl = {0435.34064},
     url = {http://geodesic.mathdoc.fr/item/MM2_1980__31_154705/}
}