@article{PORMA_1981__40_4_115469,
     author = {Grzaslewicz, Ryszard},
     title = {A note on extreme contractions on $\ell _p$-spaces},
     journal = {Portugaliae mathematica},
     pages = {413--419},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {1981},
     mrnumber = {0836103},
     zbl = {0587.47047},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1981__40_4_115469/}
}