@article{MZ_1988__199_1_173981,
     author = {A. Sersouri},
     title = {Op\'erateurs diagonaux dans les espaces \`a bases.},
     journal = {Mathematische Zeitschrift},
     pages = {491--500},
     publisher = {mathdoc},
     volume = {199},
     number = {1},
     year = {1988},
     zbl = {0631.46013},
     url = {http://geodesic.mathdoc.fr/item/MZ_1988__199_1_173981/}
}