@article{10_4153_CMB_1966_052_6,
     author = {Elliott, George and Halperin, Israel},
     title = {Linear {Normed} {Spaces} with {Extension} {Property}},
     journal = {Canadian mathematical bulletin},
     pages = {433--441},
     year = {1966},
     volume = {9},
     number = {4},
     doi = {10.4153/CMB-1966-052-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-052-6/}
}