@article{MAN_1973__202_162413,
     author = {L.A. Karlovitz},
     title = {On the {Duals} of {Flat} {Banach} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {245--250},
     publisher = {mathdoc},
     volume = {202},
     year = {1973},
     zbl = {0236.46015},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__202_162413/}
}