@article{10_4064_sm202_2_5,
     author = {Jarno Talponen},
     title = {Directionally {Euclidean} structures of {Banach} spaces},
     journal = {Studia Mathematica},
     pages = {191--203},
     publisher = {mathdoc},
     volume = {202},
     number = {2},
     year = {2011},
     doi = {10.4064/sm202-2-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm202-2-5/}
}