@article{MM2_1974__12_154237,
     author = {Hartmut Pecher},
     title = {Das {Verhalten} der {Ableitungen} globaler {L\"osungen} nicht-linearer {Wellengleichungen} f\"ur grosse {Zeiten.}},
     journal = {Manuscripta mathematica},
     pages = {197--204},
     publisher = {mathdoc},
     volume = {12},
     year = {1974},
     zbl = {0276.35066},
     url = {http://geodesic.mathdoc.fr/item/MM2_1974__12_154237/}
}