@article{MS2_1961__9_165782,
     author = {George Maltese},
     title = {Convex {Ideals} and {Positive} {Multiplicative} {Forms} in {Partially} {Ordered} {Algebras.}},
     journal = {Mathematica Scandinavica},
     pages = {372--382},
     publisher = {mathdoc},
     volume = {9},
     year = {1961},
     zbl = {0119.10901},
     url = {http://geodesic.mathdoc.fr/item/MS2_1961__9_165782/}
}