@article{MAN_1966__163_161376,
     author = {J. WEIDMANN},
     title = {Integraloperatoren der {Spurklasse.}},
     journal = {Mathematische Annalen},
     pages = {340--345},
     publisher = {mathdoc},
     volume = {163},
     year = {1966},
     zbl = {0134.31901},
     url = {http://geodesic.mathdoc.fr/item/MAN_1966__163_161376/}
}