@article{MAN_1973__204_162455,
     author = {Manfred Wolff},
     title = {\"Uber {Korovkin-S\"atze} in lokalkonvexen {Vektorverb\"anden.}},
     journal = {Mathematische Annalen},
     pages = {49--56},
     publisher = {mathdoc},
     volume = {204},
     year = {1973},
     zbl = {0243.41025},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__204_162455/}
}