@article{10_4064_sm_79_1_83_86,
     author = {M. Putinar},
     title = {Functional calculus and the {Gelfand} transformation},
     journal = {Studia Mathematica},
     pages = {83--86},
     publisher = {mathdoc},
     volume = {79},
     number = {1},
     year = {1984},
     doi = {10.4064/sm-79-1-83-86},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-79-1-83-86/}
}