@article{MM2_1974__12_154233,
     author = {Hansj\"org Kielh\"ofer},
     title = {Halbgruppen und semilineare {Anfangs-Randwertprobleme.}},
     journal = {Manuscripta mathematica},
     pages = {121--152},
     publisher = {mathdoc},
     volume = {12},
     year = {1974},
     zbl = {0276.35059},
     url = {http://geodesic.mathdoc.fr/item/MM2_1974__12_154233/}
}