@article{MAN_1959__138_160701,
     author = {F.E. BROWDER},
     title = {Functional {Analysis} and {Partial} {Differential} {Equations.} {I}},
     journal = {Mathematische Annalen},
     pages = {55--79},
     publisher = {mathdoc},
     volume = {138},
     year = {1959},
     zbl = {0086.10301},
     url = {http://geodesic.mathdoc.fr/item/MAN_1959__138_160701/}
}