@article{10_4064_sm159_1_3,
     author = {Andreas Defant and Mieczys{\l}aw Masty{\l}o},
     title = {Composition of $(E,2)$-summing operators},
     journal = {Studia Mathematica},
     pages = {51--65},
     publisher = {mathdoc},
     volume = {159},
     number = {1},
     year = {2003},
     doi = {10.4064/sm159-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm159-1-3/}
}