@article{701145,
     title = {On countability of the spectrum of Banach space valued weakly almost-periodic functions},
     booktitle = {Abstracta. 7th Winter School on Abstract Analysis},
     series = {GDML\_Books},
     publisher = {Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1979},
     pages = {42-43},
     url = {http://dml.mathdoc.fr/item/701145}
}

Kürsten, K.-D. On countability of the spectrum of Banach space valued weakly almost-periodic functions, dans Abstracta. 7th Winter School on Abstract Analysis, GDML_Books,  (1979), pp. 42-43. http://gdmltest.u-ga.fr/item/701145/