@article{MAN_1979__244_163294,
     author = {K. John and V. Zizler},
     title = {On a {Tensor} {Product} {Characterization} of {Nuclearity.}},
     journal = {Mathematische Annalen},
     pages = {83--88},
     publisher = {mathdoc},
     volume = {244},
     year = {1979},
     zbl = {0417.46006},
     url = {http://geodesic.mathdoc.fr/item/MAN_1979__244_163294/}
}