@article{MAN_1968__175_161673,
     author = {R.A. AL\`O and H.L. SHAPIRO},
     title = {Normal {Bases} and {Compactifications.}},
     journal = {Mathematische Annalen},
     pages = {337--340},
     publisher = {mathdoc},
     volume = {175},
     year = {1968},
     zbl = {0153.24502},
     url = {http://geodesic.mathdoc.fr/item/MAN_1968__175_161673/}
}