@article{SMJ2_2008_34_3_a6,
     author = {Kadets, Vladimir and Katkova, Olga and Mart{\'\i}n, Miguel and Vishnyakova, Anna},
     title = {Convexity around the {Unit} of a {Banach} {Algebra}},
     journal = {Serdica Mathematical Journal},
     pages = {619--628},
     publisher = {mathdoc},
     volume = {34},
     number = {3},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2008_34_3_a6/}
}