@article{MZ_1983__182_173282,
     author = {Hans-Otto Walther},
     title = {Bifurcation from {Periodic} {Solutions} in {Functional} {Differential} {Equations.}},
     journal = {Mathematische Zeitschrift},
     pages = {269--290},
     publisher = {mathdoc},
     volume = {182},
     year = {1983},
     zbl = {0488.34066},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__182_173282/}
}