Geodesic
Korovkin theory in Banach $^*$-algebras
Mathematica slovaca, Tome 43 (1993) no. 5, pp. 631-642
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Classification : 41A36, 41A65, 46K99, 46L05 
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     title = {Korovkin theory in {Banach} $^*$-algebras},
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     pages = {631--642},
     year = {1993},
     volume = {43},
     number = {5},
     mrnumber = {1273715},
     zbl = {0799.41022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1993_43_5_a6/}
}
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Beckhoff, Ferdinand. Korovkin theory in Banach $^*$-algebras. Mathematica slovaca, Tome 43 (1993) no. 5, pp. 631-642. http://geodesic.mathdoc.fr/item/MASLO_1993_43_5_a6/

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