@article{10_4064_cm142_1_7,
     author = {Adam Os\k{e}kowski},
     title = {On the {UMD} constant of the space $\ell _1^N$},
     journal = {Colloquium Mathematicum},
     pages = {135--147},
     publisher = {mathdoc},
     volume = {142},
     number = {1},
     year = {2016},
     doi = {10.4064/cm142-1-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm142-1-7/}
}