@article{MS2_1998__81_2_167442,
     author = {Gregor Dieckmann},
     title = {Korovkin theory in liminal {JB-algebras.}},
     journal = {Mathematica Scandinavica},
     pages = {269--282},
     publisher = {mathdoc},
     volume = {81},
     number = {2},
     year = {1998},
     zbl = {0904.46040},
     url = {http://geodesic.mathdoc.fr/item/MS2_1998__81_2_167442/}
}