@article{CM_1983__50_1_65_0,
     author = {Apiola, Heikki},
     title = {Characterization of subspaces and quotients of nuclear $L_f (\alpha ,\infty )$-spaces},
     journal = {Compositio Mathematica},
     pages = {65--81},
     publisher = {Martinus Nijhoff Publishers},
     volume = {50},
     number = {1},
     year = {1983},
     zbl = {0528.46003},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1983__50_1_65_0/}
}