@article{10_1007_s10587_011_0027_9,
     author = {Ferrando, Irene},
     title = {Factorization theorem for $1$-summing operators},
     journal = {Czechoslovak Mathematical Journal},
     pages = {785--793},
     publisher = {mathdoc},
     volume = {61},
     number = {3},
     year = {2011},
     doi = {10.1007/s10587-011-0027-9},
     mrnumber = {2853092},
     zbl = {1249.47007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-011-0027-9/}
}