@article{MAN_1971__191_162124,
     author = {R.A. AL\`O and L.I. SENNOTT},
     title = {Extending {Linear} {Space-Valued} {Functions.}},
     journal = {Mathematische Annalen},
     pages = {79--86},
     publisher = {mathdoc},
     volume = {191},
     year = {1971},
     zbl = {0198.28005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1971__191_162124/}
}