@article{MZ_1973__132_171922,
     author = {Egon Scheffold},
     title = {Ein allgemeiner {Korovkin-Satz} f\"ur lokalkonvexe {Vektorverb\"ande.}},
     journal = {Mathematische Zeitschrift},
     pages = {209--214},
     publisher = {mathdoc},
     volume = {132},
     year = {1973},
     zbl = {0255.46007},
     url = {http://geodesic.mathdoc.fr/item/MZ_1973__132_171922/}
}