@article{MAN_1959__139_160730,
     author = {V. KLEE},
     title = {Some {New} {Besults} on {Smoothness} and {Rotundity} in {Normed} {Linear} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {51--63},
     publisher = {mathdoc},
     volume = {139},
     year = {1959},
     zbl = {0092.11602},
     url = {http://geodesic.mathdoc.fr/item/MAN_1959__139_160730/}
}