@article{MAN_1975__218_162795,
     author = {Daniel C. Kemp},
     title = {A {Note} on {Smoothability} in {Banach} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {211--218},
     publisher = {mathdoc},
     volume = {218},
     year = {1975},
     zbl = {0302.46031},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__218_162795/}
}