@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/} }