@article{MOMA_1982__93_178057,
     author = {Gerhard Kowol},
     title = {Approximation durch {Polynomfunktionen} auf universellen {Algebren.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {15--32},
     publisher = {mathdoc},
     volume = {93},
     year = {1982},
     zbl = {0468.08006},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1982__93_178057/}
}