@article{MAN_1974__212_182738,
     author = {H. Millington},
     title = {On {Characterizations} of {Nuclear} {Spaces} and {Quasi-Integral} {Operators.}},
     journal = {Mathematische Annalen},
     pages = {103--112},
     publisher = {mathdoc},
     volume = {212},
     year = {1974},
     zbl = {0287.46003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__212_182738/}
}