@article{10_4064_sm160_3_1,
     author = {B. Yood},
     title = {Non-normal elements in {Banach} $^*$-algebras},
     journal = {Studia Mathematica},
     pages = {201--204},
     publisher = {mathdoc},
     volume = {160},
     number = {3},
     year = {2004},
     doi = {10.4064/sm160-3-1},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm160-3-1/}
}